Hi Tom,
thanks once more for helping… i did this, and it works again.
The plugin causing this problem is “ShareButton by AddThis”… till WP 4.5.2 it worked fine.
I deactivated this plugin, now all is fine again!!!!
Thanks for helping and best regards from Austria,
Chris
Hi Tom,
thanks for your answer.
We disabled the MMM and when we are trying to add a new menu, we are getting still the same error message: “Please enter a valid menu name”.
‘max_input_vars’ are now on 6000.
Because we have changed nothing before, we have absolutely no idea where to search for fixing the problem…
Do you have another advice! Thanks in advance!
Regards,
Chris