Our website based on magento 18.104.22.168 has problems with
Paypal express checkout - loops back to main page after checkout showing website haer
amazon checkout (creative style) - Does not progress past selecting delivery address.
These both must be fixed.
We can also upgrade 22.214.171.124 to 1.9.1
Prefer magento certified partner.
I have tested using apache and nginx and bugs remains the same in both.