Are you getting an error after updating your WordPress?
Did the newly installed plugin make your site unreachable?
Are you getting an error when trying to visit your site?
Errors like these and more a common thing with WordPress and they can be very annoying to deal with, but with my 8+ years of experience in the field I can help you get them sorted out and fixed in the shortest time possible.
Please, send me a message with the exact error you're having before ordering so all can be clear from the start.