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 ('52ac87dd0424877d4f4a798fbe635c0a','0','3.142.210.100','Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; +claudebot@anthropic.c','1715523526','misc.php?action=imprint&sid=0b5faacddc287d2aa8158248b9f020b2','0','0','')
mysql error: Duplicate entry '52ac87dd0424877d4f4a798fbe635c0a' for key 'PRIMARY'
mysql error number: 1062
mysql version: 5.6.13
php version: 7.4.33
Date: 12.05.2024 @ 16:18
Script: /misc.php?action=imprint&sid=0b5faacddc287d2aa8158248b9f020b2
Referer: http://wehrbauten.de/misc.php?action=imprint&sid=0b5faacddc287d2aa8158248b9f020b2