Errors while migrating an old bugzilla 5.1.1 installation

[Wolfgang]

Hello, Hello, I'm new here and hope you're all doing well. I'm facing 
the problem of migrating an old Bugzilla installation (version 5.1.1) 
that hasn't been maintained in recent years to a new Linux system. We 
want to use the installation as an archive to read old entries. We 
performed a 5.1.1 installation on the new host, but when I migrate the 
data, I get the error message "undef error - obsolete: filter not found" 
for bug entries with attachments. Does anyone have any ideas on how to 
solve this problem? I've already tried running the old installation on 
the new host, but I'm getting Perl errors (insecure dependency in 
sysopen while running with -T - Bugzilla bug 1302358). Any ideas to 
solve my problem? Best regards Lemmy
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