How to fix defined(@array) is deprecated error after migrating Yabb forum to new host?

Question

Perl

After migrating the site and forum to another hosting, forum topics do not open, an error is displayed:

Error: An error has occurred! defined(@array) is deprecated at ./Sources/ExtendedProfiles.pl line 151.

The attributes of folders and files have been changed according to the instructions www.sciteclibrary.ru/Quick-Guide/Russian/install/3.html
What else could be the reason - it's not clear.
On the old forum, Gardian (or whatever it's called properly) was activated, but its folders starting with _ are not active and .htaccess in the root of the site is also removed.
Who can tell me how to fix this!?

Answer 1

Successive deletion of the word " defined " in three places of the ./Sources/ ExtendedProfiles.pl
file helped. After each deletion (except the last one), the same error occurred, but in a different line with a similar code.
The forum is up and running.
Thanks to all!