I have run Magento problems I tried to put in the new version as of today version 22.214.171.124 - and get
There has been an error processing your request
I deleted all mage filles in var/cache
It looks like your upgrade did not happen smoothly.. The error is suggesting a new table in 126.96.36.199 already exists. You could try deleting the mg_permission_variable table, clearing cache and trying again.
It may also have problems with mg_permission_block too; if it does.. repeat the process for that table.