Web Access and Mac

The company I work for uses Lotus Notes Domino Web Access as the email client. I can access everything on my PCs but I am not able to do many options on my Mac (the most important being send mail). I have tried different browsers but get the same error message.

I receive an error stating “Domino Web Access Warning. Sorry we were unable to process your request at this time. If you are unable to continue working in your mail file, please dismiss this warning, select View, Reload from your browsers menu.”