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 ('c2a808a3fae35f5c562ada025ee7484e','0','3.141.199.243','Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; +claudebot@anthropic.c','1714696302','misc.php?action=imprint&sid=097101cb070418cb6eb01a26365948d6','0','0','')
mysql error: Duplicate entry 'c2a808a3fae35f5c562ada025ee7484e' for key 'PRIMARY'
mysql error number: 1062
mysql version: 5.6.13
php version: 7.4.33
Date: 03.05.2024 @ 02:31
Script: /misc.php?action=imprint&sid=097101cb070418cb6eb01a26365948d6
Referer: http://wehrbauten.de/misc.php?action=imprint&sid=097101cb070418cb6eb01a26365948d6