unable to login wp-admin

Hi,

I tried to install a theme i got from themeforest, but somehow it was not done correctly and now I am not able to login to ‘wp-admin’.

I get this error message that says:

Warning: require_once(/home/neowj8/public_html/wp-content/themes/Unroot-all/slider/slideinit.php) [function.require-once]: failed to open stream: No such file or directory in /home/neowj8/public_html/wp-content/themes/Unroot-all/functions.php on line 369

Fatal error: require_once() [function.require]: Failed opening required ‘/home/neowj8/public_html/wp-content/themes/Unroot-all/slider/slideinit.php’ (include_path=’.:/usr/lib/php:/usr/local/lib/php’) in /home/neowj8/public_html/wp-content/themes/Unroot-all/functions.php on line 369

was wondering if anyone could help?