what will happen in my website when i changed the current theme with new one? - wordpress

1) Can i change the theme of wordpress in this site
www.lenews.info
with this,
http://quanticalabs.com/wp_themes/pressroom/home-style-6/
2)if i do it i lost something of image article format etc??
i need to change the theme but i don't know if i do it, what happen in the site
3) if i change the template? i want the same format of plugin and component, can anyone help me with this?
Presently I am using a wordpress theme.
I want to change it to something better. But I am afraid, if I change
the theme,
I will lose all my contents that includes Posts, Pictures,
Categories, Tags.
I am not at all aware of this fact. Need some help.
Tell me if what I am afraid of is really going to happen if I change or not.
What are the pre-steps that I can take to keep all my contents uploaded the same way they were before.
I already have a daily backup system using WP Backup plugin.What else?
Please help!

Good habit is backup before do changes.
Checklist: 6 Things You MUST DO Before Changing WordPress Themes
Take Notes on Your Current Theme
Go through your theme files and note down all additional code that you added. You also want to check your current theme’s load time because this way you can compare the two. Go to a site like Pingdom Tools or use YSlow to test out different pages (Yes different pages, not just the homepage).
Be cautious of the Sidebars
If you are using a widget-enabled theme, and you switch to a theme that is not widget-ready, then you will lose all of that. If you are using a widget-enabled WordPress theme, then this is not an issue.
Also anything that you modify in sidebar.php file of your old theme, will be overwritten. So make sure that you add those codes in the new theme sidebar.
Backup!!
You never have anything to lose by creating a backup. As a precautionary measure, you should backup all of your theme files, plugins, and the database.
4.Testing all functionality and plugins
Once you have the new theme activated, you need to make sure that you retain all the functionality and plugins still work. Try out all the features including but not limited to the commenting process, single post pages, search, 404 page, archive page, contact page etc. Make sure all of your widgets are still there and are working.
Cross Browser Compatibility
Test your site in all browsers you have access to. Browsers have a tendency of rendering things differently.
Maintenance Mode
You probably don’t want your users to see while you are making the switch because they will end up seeing a broken site or such. It is best to turn on Maintenance mode for 15 – 20 minutes that it may take you to make sure that everything is working properly. Once you have setup Maintenance mode, you are good to go ahead and activate the new theme.

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Link blocks to composer in Concrete5

I'm just playing about with an offline copy of Concrete5 and was wondering if there is any way to link blocks to the composer system to make them work? I made a page template hoping I could just click 'new page' and select my template to add it to the right area of my test site, but it won't show up. I then tried to edit a preset page template from my theme, and that worked fine... except it still populates the new page with the original blocks.
It seems like a total nightmare to do anything in this system. Should I be using a different one if I can't even do this?
I am not sure I fully understand your question but have you had a look at this tutorial? It might help https://documentation.concrete5.org/tutorials/setup-a-simple-blog-within-concrete-5-7

Is it supposed to take a while for styles to update on Wordpress localhost?

I'm programming using Notepad ++ and using a localhost to build out wordpress themes. I've noticed that I save the stylesheet, then I go to refresh the wordpress page and it doesn't show an effect. I check the source code, and it's still using the old style sheet.
Then a couple of minutes later, it uses the new one. I've seen people have stylesheets update automatically, I'd like to know if there's anything special I need to be doing to make this so?

Wordpress theme reverted back automatically

I have theme Sydney by ATHEMES activated on my Wordpress site http://www.hamrolagi.com, and edited the theme files without making a child theme. I had edited the header.php, template-tags.php and other templates files according to the customization requirement. It was working fine until yesterday, but today I see that the edits I had made to the files were reverted, and though the site is still functioning, the customizations are lost, except that to the template-tags.php, which is the only file I had edited which was not in the main theme directory. I had backed up the edited files. So, I was able to re-edit them, but I wanted to know what caused it and how to prevent it in future?
I'm pretty sure it was a theme update. Always use child themes - that is by far the only sure way to prevent it from happening in the future.

The famous Wordpress white screen of death

Like mentioned in the title, i think this is by far one problem Automattic or Wordpress team cannot solve until no matter what version Wordpress will go in future. In this question, i am focusing to the white screen of death that i get whenever i want to activate certain plugins. I am developing a site that requires me to use 30 plugins. Yeah, some will say thats too many plugins for a site, no wonder i will get the white screen. But hey, this is Wordpress, one of the reason that makes Wordpress the most popular blogging platform is because the availability of the plugins that can make you achieve your goal in less time. For those who expert in php+wp development, you guys can say hack the wp is better than using a lot of plugins like what i am doing but hey, majority of wp users are not php guru. Most of them are normal user like me or even just know how to install and use what are available to them.
So far, here the common steps we do when get the white screen of death (WSOD).
Rename the wp-content/plugins folder name such as wp-content/plugins-temp, this will deactivate all plugins
Like me, i prefer rename the individual plugin folder name, such as wp-content/plugins/akismet to wp-content/plugins/akismet-temp
After that, reactivate all the plugins one by one, so we can know which plugin is the culprit
Check for extra empty space at the end of the plugin file, especially after the php closing tag ?> make sure there is no extra space after the tag. Make sure check at the theme functions.php file (if any) or the plugin file.
Increase the memory allocation for wordpress
Usually, your site will be back to normal after that. BUT this will still not solve this problem.
For me, this is very annoying to me, especially the step number 3. How can we know which plugin is the culprit?? At the first place, i thought the step number 3 is really a fact but now i think its a lie. WHY?
Like right now, suddenly after i activate 25 plugins, one of plugin that i cannot reactivate is Akismet. What? Akismet? Yes, the plugin dev by the WP team itself. I know the step number 3 above is a lie because if i activate Akismet first, the Akismet is activated successfully. No problem at all.
So right now the problem is plugins compatibility among the plugins. How can me as a normal user can identify which plugin that is not friendly to what plugin??? If i am using 30 plugins, how many probabilities from one plugin is not compatible to each plugin???? how can i know which plugins should be activated first so the WSOD will not appear?
If there is error, then maybe i can have a clue, but its a plain white screen. I am clueless. This clash of plugins in wordpress is really an unsolved problem that makes me really stress.
Anyone know how to fix this? At least know how to activate the plugins via mysql?
Hello :) this my first answer I hope it benefits so many people because I suffered from this stupid problem and the solution was really awkward and I can not get it but it works.
I'm here to talk about the solution for the white screen of death that comes after logging in and you get this white thing instead of the admin panel what ever the user role was.
There is the common solutions as mentioned above. In my case I had only one plugin and I did a lot of changes on it. Also I edited the footer.php in wordpress. I found out the WSOD ( White Screen Of Death ) comes out after the first changes in one of the php files of the plugin. The way I used to do the changes is by editing the php file in my computer through text editor then I would upload the changed php through ftp to replace the old one and then the problem starts. Abd when I revert the step and return the original file every thing goes back to normal.
If you having this problem the solution would be very simple and I really don't know why no one have ever post it before.
The solution would be by simply putting your changes through the editor you have in the admin panel. There is two editors, one for the theme and the other one for the plugins.
Open the editor in the admin panel for the plugin you want to modify insert the changes that you want in the text editor you have in the admin panel web page and when you are done click on the update file button.
And happily you will end up with your modification and NO White Screen Of Death.
I hope you all a bright future with no more WSOD.
UPDATE: through researching and trying more , I found out that editing the files and Encoding it with UTF-8 will lead to the problem to avoide that edit the file and make sure the encoding is either ANSI or UTF-8 without BOM
You should try to run a version of PHP with xdebug installed. A WSOD, that's most likely a PHP parse error. So this isn't really a WordPress problem, it's a PHP problem.
Using xdebug helps, because you'll get a fancy stacktrace in some significant % of the cases where you otherwise would have gotten a WSOD.

WordPress - Changed directory and images do not appear

I changed the folder that my WordPress installation was in.
However, this worked fine, except now all my images are not showing up.
The problem is that each post has the full url of the image in it. (not my doing, this seems to be the default setting)
Is there a tool or a quick fix available for this?
There is a Update URLs plugin for Wordpress to help you with that. Hope that helps!
You need to update your settings to reflect the directory change on the settings page in your admin section.
Edit:
Since it seems to be a problem in the posts themselves, you'll probably have to write a quick fixme script that runs through your post table searches for '="/' or something similar and updates any hardcoded links.

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