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 ('b2b02ce3b930afca900549707f47661b','0','3.16.69.143','Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; +claudebot@anthropic.c','1715024856','jgs_portal.php?sid=853b33e75e82cba1fa83807f05b8a280','0','0','')
mysql error: Duplicate entry 'b2b02ce3b930afca900549707f47661b' for key 'PRIMARY'
mysql error number: 1062
mysql version: 5.6.13
php version: 7.4.33
Date: 06.05.2024 @ 21:47
Script: /jgs_portal.php?sid=853b33e75e82cba1fa83807f05b8a280
Referer: http://wehrbauten.de/jgs_portal.php?sid=853b33e75e82cba1fa83807f05b8a280