It is working fine on server!

185.51.190.192
jegy.momkult.hu
Host: jegy.momkult.hu
Accept-Encoding: gzip, br, zstd, deflate
User-Agent: Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; +claudebot@anthropic.com)
Accept: */*