Hi @hamid333,
So, as the error message says, the directory "/var/www/mycms/vendor/bower-asset/fulcalendar/dist"
does not exist. Also the screen shot confirms the same.
It clearly shows that the installation of fulcalendar has failed.
Please tell us what you did to install it, then someone may show you how to do it correctly.
Did you find a fix for this?