[Koha] Software error: when trying to open Koha web installer

[jackymasibo]

hi guys i have installed koha but now when i try to connect to its web
installer so that i can finish up the configurations i get the following
errorSoftware error:

Access denied for user 'admin'@'localhost' (using password: YES) at
/usr/share/koha/lib/C4/Context.pm line 758.
Compilation failed in require at /usr/share/koha/lib/C4/Auth.pm line 31.
BEGIN failed--compilation aborted at /usr/share/koha/lib/C4/Auth.pm line 31.
Compilation failed in require at
/usr/share/koha/intranet/cgi-bin/mainpage.pl line 25.
BEGIN failed--compilation aborted at
/usr/share/koha/intranet/cgi-bin/mainpage.pl line 25.

For help, please send mail to the webmaster (webmaster at LIBRARY), giving
this error message and the time and date of the error.


any help will be appreciated.

thanks