1.7.2 server crashes when a certain mod is removed

[atlas1337]

I get a crash when the server is booting saying that there are fatal block and item id issues whenever i remove this one mod that i don't want anymore. Here is the log https://drive.google.com/file/d/0B4nEkRZJTcPKS3ZkSnBudVEzOVU/edit?usp=sharing

[LexManos]

Unless you hadle it, removing of mods that add items/block is not supported at this time.

You can edit the level.dat manually to remove them from the list, but it's not recommended to remove mods that add content to your world unless you want to have a corrupt world.