Strange text under my WordPress Blog - wordpress

I have been trying to get rid of some strange text appearing under my WordPress blog, I have check Wordpress support and googled about it but nothing. I tried changing the Theme of the blog too, but to no avail. The Address to my blog is abuango.net. I will be glad if you can guide me to solving this issue...
I am using the Foghorn Theme, below is a preview of the strange text:

You have been hacked. Read Verifying that I have fully removed a WordPress hack? for advice.
The most important part is: You have to find the infection point. If you don't know this … it will happen again and again.

I seem to have fixed it using WordDefence (http://www.wordfence.com), my General Template was modified, the plugin showed a side by side comparison of the original and the modified file and gave an option to restore original. i will now proceed to changing all my passwords. Thanks all

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swiper.js is redirecting my lightbox to the original media URL

The swiper.min.js file that was part of my WordPress them is not allowing any lightbox related plugins on my website to load. When you click on it, you can see the lightbox arrows for a split second, then it redirects to the original media URL. Can someone pinpoint what it is in the swiper.js file that is making this happen. That way I can remove it. I would so appreciate it. I've been spending days trying to figure out what the issue is, and I've finally at least pin pointed that it's coming from swiper.min.js.
Website link where lightbox plugin is used: https://smithspecialized.com/edmonton-drawworks/
I tried removing some things in the file that I thought had something to do with the lightbox redirecting to media URL, but then it broke the code so I think I removed too much, or the incorrect section in the code.
Hey there it's difficult to find any error without accessing website from inside. If don't want to give access then-
please use different plugin or
try to disable and enable plugin, as sometime confliction between plugin caused the issue.

Lines of nonsense code where wordpress pages should be: Avada

A few of the pages on my organisation's website are displaying code - not real code - just nonsense code, like this:
���ْG�(�,��?���fUH쵲اDQj�������he $�#B�.
Go to http://www.eavi.eu/about-us/ for an example or check the image here:
I have emailed Avada's support, but I was wondering if anyone has encountered anything similar in the past and might be able to help.
I removed the Tiny MCE editor plugin and this fixed everything.
It seems there is an issue with the Avada theme and this plugin which I confirmed with someone else.

Woocommerce wishlist plugin breaking cookies/cache?

I am working on a woocommerce site right now. I have a plugin for the wishlist that I purchased from Code Canyone here - http://codecanyon.net/item/dvin-woocommerce-wishlist-wp-plugin/1995206
The issue is that when I activate the wishlist plugin I'm no longer able to add multiple items to the cart. It feels like the plugin is breaking the cachce or cookies in some way, and causing it to reset every time you click "add to cart"
I have found that even upon uploading and running without a modified theme or modified plugin in any way that it still doesn't work. I have looked online, but no one else is seeming to have this problem. So it must be me?
I don't get any errors regarding the cache or plugin with debug mode on. (I do get tons of errors for cForms, though. not sure why, but that's another post).
Take a look - http://www.shultzilla.com/admin/shop/sample-product/
Has anyone run into this issue before? Is this a symptom of a specific issue? I have no idea why this would only be happening to me and no one else.
If I deactivate the plugin it works fine, so I'm pretty sure it's something up with this plugin. I've tried to reach out to the developer, but I haven't heard back from him, and Code Canyon says they're not responsible.
Thanks in advance for your help, y'all!
I managed to get ahold of the developer.
Turns out there was a session_start() function that was being called in two files.
He's fixed the issue and it now works.

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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