I suggest contact your host and open a support ticket. Once you get errors down in the windows temoprary files where the asp.net compiler generates files, the only thing I know to do is stop the IIS web site then delete the temporary files (you can't delete them without stopping the web site) then start the web site and hopefully it will re-generate them correctly.
when I google for "Compiler Error Message: The compiler failed with error code 1." I see lots of results including some support tickets at Arvixe where they say that somehow 32 bit options were enabled on the application pool and setting that to false fixed it.
looks like you deployed also Event Calendar Pro and Form Wizard Pro. I would not deploy add on features until the site is first working correctly. Also make sure you have a license for each installation where you deploy those files.