Failed to initiate library(plot3D) package - r

Question

I am new to R. I was trying to install the plot3D package. The package doesn't work even after successful instalment. I am using Mac OS. following are the codes used :-
install.packages('plot3D')
library(plot3D)
I got the following error:-
xcrun: error: invalid active developer path
(/Library/Developer/CommandLineTools), missing xcrun at:
/Library/Developer/CommandLineTools/usr/bin/xcrun Error: package or
namespace load failed for ‘plot3D’: .onLoad failed in loadNamespace()
for 'tcltk', details: call: dyn.load(file, DLLpath = DLLpath, ...)
error: unable to load shared object
'/Library/Frameworks/R.framework/Versions/4.1/Resources/library/tcltk/libs/tcltk.so':
dlopen(/Library/Frameworks/R.framework/Versions/4.1/Resources/library/tcltk/libs/tcltk.so,
0x000A): Library not loaded: /opt/X11/lib/libX11.6.dylib Referenced
from:
/Library/Frameworks/R.framework/Versions/4.1/Resources/library/tcltk/libs/tcltk.so
Reason: tried: '/opt/X11/lib/libX11.6.dylib' (no such file),
'/Library/Frameworks/R.framework/Resources/lib/libX11.6.dylib' (no
such file), '/Users/mayank/lib/libX11.6.dylib' (no such file),
'/usr/local/lib/libX11.6.dylib' (no such file),
'/usr/lib/libX11.6.dylib' (no such file), '/lib/libX11.6.dylib' (no
such file),
'/Library/Java/JavaVirtualMachines/jdk1.8.0_241.jdk/Contents/Home/jre/lib/server/libX11.6.dylib'
(no such file), '/var/folders/2j/3rpp744j739 In addition: Warning
message: In system2("/usr/bin/otool", c("-L", shQuote(DSO)), stdout =
TRUE) : running command ''/usr/bin/otool' -L
'/Library/Frameworks/R.framework/Resources/library/tcltk/libs//tcltk.so''
had status 1