Rewrote AceSEF urls and caused error

Hi there, I am running Joomla 2.5
I installed AceSEF, and everything was fine. Then I went in and edited the URLs, expected that AceSEF will map the old links to the new URL - but that didn't work. Now my back-end AceSEF URL page is a jumble of wrong URLs, the sitelinks are all broken - and I don't know how to go back.

When I disable AceSEF, Joomla's SEF URLs still don't work as before - 404 errors or directing to the wrong page.

Please help.
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Abhijeet RananawareWeb & Mobile DeveloperCommented:
You should have backedup AceSEF data from ACESEF control Panel.

Have you changed any settings in  Configuration >URLS> .?

if so revert back and purge all urls. and regenerate all of them.

Before following my instructions.I advise you to take backeup of urls from RESTORE/MIGRATE

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hussain6Author Commented:
How will I know whether I have a back up? Yes, I have changed some settings.
Where is restore/migrate?
hussain6Author Commented:
Okay, I found Restore/Migrate. But if I backup URLs now, it will backup the broken ones, yes?

 - is that useful?
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Abhijeet RananawareWeb & Mobile DeveloperCommented:
Yes.It will backup broken one.

I would suggest you to create copy site somewhere or on test domain.and then try to regenerate all urls.
hussain6Author Commented:
I have created a copy. Can you tell me how to purge and regenerate?
Abhijeet RananawareWeb & Mobile DeveloperCommented:
In Main Control Panel(ACE SEF) their is option to purge update.Also please clear cache before purging or updating.
hussain6Author Commented:
The Generate URLs icon is not working. Is there some other method to regenerate all URLs?
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