How to reinstate things

After purchase of AVG clean and speed up of my Windows 7 PC my online links to vital banking have been 'blocked' ?...can't 'log in'.  Any advise to change?  having now 'enabled' all programs that AVG left me nothing has changed.

Totally irritated having now purchased this once FREE AVG !

Hello Robert,
We regret for the inconvenience caused. It is strange that usually AVG PC Tuneup will not interfere with your browsing and webpages. We request you to click on Rescue center and try undo changes made by PC Tuneup to your PC and see if that helps. Please, feel free to let us know if you require any further assistance. Thank you.

Hello Robert,
We regret for the inconvenience caused. It is strange that usually AVG PC Tuneup will not interfere with your browsing and webpages. We request you to click on Rescue center and try undo changes made by PC Tuneup to your PC and see if that helps. Please, feel free to let us know if you require any further assistance. Thank you.