Cannot access webmail. Invalid request. No Data was saved

hi there
im trying to view my email via roundcube webmail.

Email filer
498


I try to log in and get the error :
Invalid request. No Data was saved
ive tried via different browsers, my phone - can t log in.

any ideas?

i alos created s upport ticketr for this issue and it was claosed without an answer : 1648656
now this support ticket has been removed. wow.

and now the system is so rubbish you cannot create a ticket

An error has occurred creating your ticket.

Internal server error