Dear All, I was using koha 17.05. When I changed koha's master password by following this blog link http://kohageek.blogspot.com/2013/05/how-to-change-master-password-of-koha.h..., <http://kohageek.blogspot.com/2013/05/how-to-change-master-password-of-koha.html> I am getting the following error. Then, I tried to update and upgrade to the new version of koha 18.05. Even then, I am getting the same error. Software error: DBIx::Class::Storage::DBI::catch {...} (): DBI Connection failed: ccess denied for user 'koha_library'@'localhost' (using password: YES) at /usr/share/perl5/DBIx/Class/Storage/DBI.pm line 1398. at /usr/share/koha/lib/Koha/Database.pm line 100 For help, please send mail to the webmaster ([no address given]), giving this error message and the time and date of the error. Please help me to solve this problem. I really appreciate your help. Thank you, Ashok.