Add Customers from Admin 2.0 (1.5.0 and later) [Support Thread]

[RK123]

Blank page guidance: https://docs.zen-cart.com/user/troub...ng/blank_page/

Thanks.
But I am still stuck with the blank page If I click on the send email link.

I could see other issues as well.
When I try to log in from the front end, I get whoops your session has expired message.

All these happened after I installed the add customers from admin 2.0 plugin.
Now I have removed all those files. But these problems still exist.

How to proceed further.

I am using: Zencart v1.5.1
PHP- Version 5.6.40