[Koha] KOHA help

good day, i subscribed to the mail list of Koha and i saw a complain about an eorror, well i do not have solutions to the issue but wanted if you can be of help to me as regards learning how to use Koha since it is an open sources software. can you share with me your learning curve about how you learn to use Koha? thank you for your nice response in anticipation.