Hi Geoff
Thank you for getting back to me
I tried all that but when it tried to upload it still came up with the 500 error code.
I currently use the 4.2 version of the calender. I can delete that and it uploads again fine with no problems.
Ive tried disabling all my other plugins and changed back to the original theme but it still gives the 500 error code when i try and upload the latest calender version.
My current version of wordpress is 4.4.2
Any advice greatly received
Thank You
Steve