I update old 4.x site to latest 5.8 version.
I try to login in old version and after login I only see blank page
Update latest version and after login same issue??
I reset browser cache etc..
Can anyone say what is wrong?
Was the problem before update, after update or in both cases?
Which php version is running on the server?
https://www.cmsimple.org/doku/en/?Insta ... quirements
Try to activate the default template by ftp (config.php). Your template is very old and doesn't meet any single standard, even not older ones.
Maybe you have to download the full download for that, because the default template is not included in the update download,
PS: As I have seen, the template __cmsimple_default__ is in your templates/ folder, so you can activate it.
With original template and content?
So the new version 5.8 should not cause the problem,
Have you activated the DebugMode? viewtopic.php?f=20&t=443