PHP Fatal error and then PHP Parse error – cannot access admin page

So I already reported a PHP Fatal error yesterday and got a work around. Uploaded, deleted and repeated process until finally a 0.9.2.9 upload worked. I thought everything is fine after that. Today, I got the same error as yesterday

[15-May-2013 13:39:42] PHP Warning: require_once(/home4/thesolit/public_html/wp-content/plugins/w3-total-cache/lib/W3/Config.php) [function.require-once]: failed to open stream: No such file or directory in /home4/thesolit/public_html/wp-content/plugins/w3-total-cache/inc/define.php on line 1426
[15-May-2013 13:39:42] PHP Fatal error: require_once() [function.require]: Failed opening required ‘/home4/thesolit/public_html/wp-content/plugins/w3-total-cache/lib/W3/Config.php’ (include_path=’.:/usr/lib64/php:/usr/lib/php:/usr/share/pear’) in /home4/thesolit/public_html/wp-content/plugins/w3-total-cache/inc/define.php on line 1426

and then did the steps I performed yesterday. Deleted files, reuploaded – nada. Same error but now I also have another which is a Parse error

[16-May-2013 10:33:49] PHP Parse error: syntax error, unexpected ‘=’ in /home4/thesolit/public_html/wp-content/plugins/w3-total-cache/inc/define.php on line 1427

Since I am a newbie and a non technical person, I don’t know what to do with this problem. I just want my admin accessible again with or without the plugin (if the problem recurs as it is very inconvenient). I currently don’t have any files of this plugin in my system so I don’t know what’s happening.

http://wordpress.org/extend/plugins/w3-total-cache/