Opencart edit orders not working, a complete customised reinstall is needed.

The problem I am experiencing:

When I try to edit an order from opencart admin by adding new products or trying to delete ones already in the order I get an error message. This feature of editing orders is extremely important and I need to get it fixed somehow.

Note: the problem existed before I installed an extension (+VQMod]Admin One Page Order View and Edit) this extension changes the look of the admin order view and edit.

I hired someone via PPH, who was unfortunately unable to complete the job. Their comments are in quotation marks below:

"Unfortunately I have already tried reverting back to default MVC files for the sale module and the problem still persists.

Due to this even after a reinstall if you revert back to the modded files / extensions the problem will still persist.

I unfortunately would not be able to undertake the re installation and resetting up the store / extensions due to not being experienced enough with the admin cpanel."



I need a professional who is able to do a custom reinstall, and to then reinstall my extensions and files to the previous state one at a time until the issue that is effecting opencart edit orders is found.

Some of the extensions have been modded slightly by the authors, and I do not want to ask them again to do their changes so a copy of my site must be made so that you can then copy files from this to put onto the new instal.

I have added various extensions to my site, as well as edits of other files, such as duplicated payment methods, and edits of language in emails to customers etc. As well as edits to the theme template etc. I don't want to loose any of these changes, or any customer data.