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Pending Public Category: Technical Support / Bugs Ticket #959

Error has occurred after uninstall

This is a public ticket

Everybody will be able to see its contents. Do not include usernames, passwords or any other sensitive information.

J2Commerce

Version
J2Store/J2Commerce v4

Conversation

Mary Stremmel

I was trying out the Store application wanting to compare it to another store app that I am trying out and decided to uninstall it when I receive this message

An error has occurred  Class "J2Store" not found

Now I am not able to do anything.  The front end shows 500 Error and the backend is stuck.

Attachments

Screenshot 2026-08-16 112307.png
Mary Stremmel

So I thought I should manually remove it so I removed all the folders I could find with a J2Store reference and droped all the J2Store tables from the database and it's still the same issue.

Olivier Buisard Staff

Hello Mary,

you will need access to the database, try the following queries (using the cpanel tool PHPMyAdmin, going to the SQL tab to run the following):

Unpublish all J2Store modules:

UPDATE `tada_modules`
SET `published` = 0
WHERE `module` LIKE 'mod_j2store%';

Disable all J2Store plugins:

UPDATE `tada_extensions`
SET `enabled` = 0
WHERE `type` = 'plugin'
AND (
`folder` = 'j2store'
OR `element` LIKE '%j2store%'
);

Replace 'tada' with the prefix used in your database.

That should give the site back.

Olivier.

Olivier Buisard Staff

You are welcome, Mary.

I reviewed our uninstall script so this does not happen again.

We apologize for the inconvenience.

Hope you'll give us another try sometime soon, especially if you run Joomla 6, our version v6 is way beyond what you saw in v4 :-)

And any feedback on why you made the decision to unistall our product, that will help us get better!

Thank you, Mary.

Olivier.