error when click save

i wanted to change some entrys and save them but only error is displayed.

Hi
please give me an admi access by email, so that I can check the error
CEd

ok, your server rejects the request with a 403 error :

Forbidden
You do not have permission to access this document.

you must check that in the security area of your server, or may be into RSFirewall

i have deactivate RS Firewall. I have no other restrictions at my server. I use also your old mobilemenu Plugin and it works at my Server

if the old plugin works, is not a valid info, sorry
the fact is that the request sent by the extension is blocked on your server. I don't know why, but it does not like the request
Please check with your host provider, check in the logs, and may be the rules in "mod_security" if it is enabled because it can cause this type of issue
I would say that the problem is related to the TOKEN (used for secutiry reason) that has a value =1

absolutely right. It was due to "mod_security". Fantastic support. I have been a satisfied customer of yours for years!
Thanks a lot!!!