Updating CB gives Error 403!!

Hi,

Updating CB results very often in a 403-error.
From my techical panel I copied this:

2019-05-20 14:20:22 Access 77.165.199.202 200
GET /administrator/index.php?option=com_comprofiler&view=editPlugin&action=uninstallself&cid=594&format=raw&_=1558354821502 HTTP/1.0

2019-05-20 14:20:23 Error 77.165.199.202
[client 77.165.199.202] ModSecurity: Access denied with code 403 (phase 2). Match of "rx ((?:submit(?\\\+| )?(request)?(?\\\+| )?>+|<<(?\\\+| )remove|(?:sign ?in|log ?(?:in|out)|next|modifier|envoyer|add|continue|weiter|account|results|select)?(?\\\+| )?>+)$|^< ?\\\\??(?: |\\\\+)?xml|^<samlp|^>> ?$)" against "ARGS:webjson" required. [file "/etc/apache2/modsecurity.d/rules/tortix/modsec/50_plesk_basic_asl_rules.conf"] [line "258"] [id "33350147"] [rev "143"] [msg "Protected by Atomicorp.com Basic Non-Realtime WAF Rules: Potentially Untrusted Web Content Detected"] [data ""] [severity "CRITICAL"] [hostname " www.pv-de-alliantie.nl "] [uri "/administrator/index.php"] [unique_id "XOKbhl273oIAAiugcK4AAAAF"], referer: www.pv-de-alliantie.nl/administrator/index.php

What can be the reason of this error?

Regards,

Florisjan

False positive mod_security rule. Contact your host for them to add an exception. Happens all the time when using mod_security and requires fine tuning occasionally.