I have working production with Cartthrob v. 2.0373
After upgrading EE to 2.8.1 and CT to 2.5 - when I try to add something in my cart - through the URL (http://staging.heartfoundation.org.nz/shop/product_view/12235/good-food-cook-book) I'm getting this error during the custom extension, which can't be found.
A PHP Error was encountered Severity: Notice
Message: Undefined index: hf_cartthrob
Filename: libraries/Extensions.php
Line Number: 193
The interesting this is however that i have database previously upgraded and to ee 281 and cart throb with this later version and this problem does not occurring.
I found the file ext.hf_cartthrob.php in system_213_working/system/e..e../extensions and I copied it to my system/ee/extensions but nothing changed.
My question is: where the custom extensions are located in new version, or probably there is some setting in the database that preventing this error, when I try to switch the database to stage version, where I originally did the EE update?
