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 ('a710d26e24a388a2926e96a4078262d3','0','18.188.98.209','Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; +claudebot@anthropic.c','1715640239','jgs_portal.php?sid=2cbd825d4944d6b67cc65091cf73b534','0','0','')
mysql error: Duplicate entry 'a710d26e24a388a2926e96a4078262d3' for key 'PRIMARY'
mysql error number: 1062
mysql version: 5.6.13
php version: 7.4.33
Date: 14.05.2024 @ 00:43
Script: /jgs_portal.php?sid=2cbd825d4944d6b67cc65091cf73b534
Referer: http://wehrbauten.de/jgs_portal.php?sid=2cbd825d4944d6b67cc65091cf73b534