It worked for me by Changing HTML Compression to false in my qa-config.php file. But while upgrading the database I got this error:
2 upgrade step/s remaining...
Running query: ALTER TABLE Quans_userpoints ADD COLUMN cupvotes MEDIUMINT NOT NULL DEFAULT 0 AFTER adownvotes, ADD COLUMN cdownvotes MEDIUMINT NOT NULL DEFAULT 0 AFTER cupvotes, ADD COLUMN cvoteds INT NOT NULL DEFAULT 0 AFTER avoteds ...
Database query error 1060
Duplicate column name 'cupvotes'
ALTER TABLE Quans_userpoints ADD COLUMN cupvotes MEDIUMINT NOT NULL DEFAULT 0 AFTER adownvotes, ADD COLUMN cdownvotes MEDIUMINT NOT NULL DEFAULT 0 AFTER cupvotes, ADD COLUMN cvoteds INT NOT NULL DEFAULT 0 AFTER avoteds