Invalid CSRF token!XH-ERROR again.

[Tata]

After finishing templates creation with onepage plugin (now tested here), I tried to use the same templates without the plugin (now tested here). The templates work fine. Both webpages have exactly the same set of plugins.
In the "standard" version (without the onepage plugin) I can't save any change both in content or settings.

Invalid CSRF token!XH-ERROR: Invalid CSRF token!
/Users/msereday/webpages/rancdubina/cmsimple/classes/CSRFProtection.php:125

In the "onepage" version everything works fine except of the pagemanager. Where shall I look for a reason?
The only XH_debug warning is

WARNING: A non-numeric value encountered
/Users/msereday/webpages/rancdubina/cmsimple/functions.php:2661

But this is reported in both versions.

pagemanager-missnig-icons.jpg

[cmb]

After finishing templates creation with onepage plugin (now tested here), I tried to use the same templates without the plugin (now tested here). The templates work fine. Both webpages have exactly the same set of plugins.

I guess there is a fatal error caused by the template. Have a look at the generated HTML, and see whether it terminates as desired (</html>) or not.

In the "onepage" version everything works fine except of the pagemanager. Where shall I look for a reason?
The only XH_debug warning is

WARNING: A non-numeric value encountered
/Users/msereday/webpages/rancdubina/cmsimple/functions.php:2661

Hm, that would be an empty line.

But this is reported in both versions.

I suggest to compare the generated HTML of both versions. If it is identical, the FontAwesome Fonts or CSS might be missing.

[Tata]

Today the ERROR-WARNING is gone. Maybe OPCahce again involved.
The other warning was reallz caused by the additional empty line after the last ?> in functions.php.
Thanks a lot. Now all templates and pages work fine.
THX