To upgrade:
follow this: http://docs.whmcs.com/Upgrading

When I try to login after the installation in the Administration Panel, I am redirected to http://www.yourdomain.com/admin?, how do I change the yourdomain.com (obviously I at this time do not have access to the Administration Panel to actually change it so is there any manual way to do this like editing a certain .php file)

admin no spanish

error in database.

Errors Occured

Please open a ticket with the debug information below for support

File: upgrade340.sql
Line 1 - Unknown column 'urlforwarding' in 'tbldomains'
Line 3 - Duplicate column name 'dnsmanagement'
Line 5 - Duplicate column name 'idprotection'
Line 6 - Duplicate column name 'eppcode'
Line 7 - Duplicate column name 'idprotection'
Line 31 - Duplicate column name 'replyingadmin'
Line 36 - Unknown column 'primarynameserver' in 'tblservers'
Line 37 - Duplicate column name 'nameserver3'
Line 40 - Duplicate column name 'accesshash'
Errors Occured

Please open a ticket with the debug information below for support

File: upgrade341.sql
Line 1 - Table 'tblaffiliatespending' already exists
Errors Occured

Please open a ticket with the debug information below for support

File: upgrade350.sql
Line 1 - Unknown table 'tblreselleraccountsetup'
Line 3 - Table 'tblcontacts' already exists
Line 8 - Duplicate column name 'type'
Line 9 - Unknown column 'tblorders.domaintype' in 'field list'
Line 10 - Can't DROP 'hostingid'; check that column/key exists
Line 11 - Duplicate column name 'contactid'
Line 12 - Duplicate column name 'clientsonly'
Line 14 - Duplicate column name 'billingcid'
Line 16 - Can't DROP 'randomstring'; check that column/key exists
Errors Occured

Please open a ticket with the debug information below for support

File: upgrade360.sql
Line 1 - Table 'tbladminroles' already exists
Line 2 - Duplicate entry '1' for key 'PRIMARY'
Line 3 - Duplicate entry '2' for key 'PRIMARY'
Line 4 - Duplicate entry '3' for key 'PRIMARY'
Line 5 - Table 'tbladminperms' already exists
Line 7 - Duplicate column name 'roleid'
Line 8 - Duplicate column name 'noautoresponder'
Line 12 - Table 'tbllinks' already exists
Line 13 - Unknown column 'userlevel' in 'where clause'
Line 14 - Unknown column 'userlevel' in 'where clause'
Line 15 - Unknown column 'userlevel' in 'where clause'
Line 16 - Can't DROP 'userlevel'; check that column/key exists
Line 17 - Can't DROP 'ordernotifications'; check that column/key exists
Line 43 - Table 'tblaffiliateswithdrawals' already exists
Errors Occured

Please open a ticket with the debug information below for support

File: upgrade361.sql
Line 1 - Unknown column 'price' in 'tblproductconfigoptionssub'
Line 2 - Duplicate column name 'quarterly'
Line 6 - Duplicate column name 'donotrenew'

help me...

no funk license