paypal library

Hi everyone, i'm using the paypal library from this tutorial and i changed the Paypal_lib function name from paypal_lib to paypal because i had an error and it worked, but after that i started to have this new error and i have no idea why: Error picture
please help

there is always something more than at first glance can not see

Because you changed the class name, you would need also to change each one of those errors to the same name.

Also you should change the name to match the new CI 3 naming convention and change the constructor.

This Library was written for an older version of CI before 3.X

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