How to recover deleted campaign in phplist?

I had mistakenly deleted a campaign for my list of campaign. How can recover it?

Please help me.

Have you been making regular backups? If so, then you should be able to restore it from that by rolling your database back to that. If not, then once gone, it’s gone.

Best you can do is see if you still have the last email you sent in your inbox/saved folder and re-create it as far as I know.