Syntax Error after editing plugin.

I tried to fix a little problem with the Mingle forum plugin because the “only registered users may post posts”, and now it competely messed up, when i push the upadate button this comes:

Parse error: syntax error, unexpected T_STRING in /home/hermie/public_html[WEBSITE NAME]/wp-content/plugins/mingle-forum/wp… on line 1953

I can’t go back to the plugin page. When i click the bback button that error comes up! I can’t even go to the dahsboard..

I think i found the problem with the code. here it is:

it says its line 1953, and i found that line.. here’s whats on that line:

$meta = “<p>”.__(“Welcome Guest, posting in this forum requires”, “mingleforum”).” reg_link’>”.__(“registration.”, “mingleforum”).”</p>”.$this->login_form();

But whenever I click “Update” the error comes up!!!! ?? what do i do?