I installed SEO ultimate with WP Job Manager and after installation my users could register accounts, but couldn't create resumes, jobs or check out from the cart. The following error appears:
Internal Server Error
The server encountered an internal error or misconfiguration and was unable to complete your request.
Please contact the server administrator, root@localhost 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.