XF 1.1 A lot of internal server errors

[abnvet]

Hello I am getting a lot of

Internal Server Error
 
The server encountered an internal error or misconfiguration and was unable to complete your request.
 
Please contact the server administrator, webmaster@brothersofchaos.com and inform them of the time the error occurred, and anything you might have done that may have caused the error.
 
More information about this error may be available in the server error log.

On a lot of things, around my site - i.e I can click whats new and get the error and then click it again and it's there - I do not see any errors in the xenforo logs is there some place else I can look to see whats happening?

Thank you for any help

list of addons I have installed

 

[abnvet]

I believe I found the plugin that was causing this

 

[ragtek]

Have you checked your apache error log?

 

[abnvet]

Have you checked your apache error log?

Real novice - I would not know how to do that ragtek - however I disabled all addons and when the widget framework was enabled I was erroring out