SQL-DATABASE ERROR

Database error in WoltLab Burning Board (2.3.6): Invalid SQL: INSERT INTO bb1_sessions (sessionhash,userid,ipaddress,useragent,lastactivity,request_uri,styleid,langid,authentificationcode) VALUES ('64113ef0dabb8d2c6e7584fe80d9fb61','0','44.192.112.123','CCBot/2.0 (https://commoncrawl.org/faq/)','1614672064','impressum.php','0','0','')
mysql error: The table 'bb1_sessions' is full
mysql error number: 1114
mysql version: 5.6.44-nmm1-log
php version: 5.6.38-nmm2
Date: 02.03.2021 @ 09:01
Script: /impressum.php
Referer: