# Assert failed: "false" in file serviceprovider.cpp:202

[![e3ba89685fd03373f1915c8ff13714eb.png](https://wiki.ethersagadb.com/uploads/images/gallery/2024-05/scaled-1680-/e3ba89685fd03373f1915c8ff13714eb.png)](https://wiki.ethersagadb.com/uploads/images/gallery/2024-05/e3ba89685fd03373f1915c8ff13714eb.png)  
  
assert failed: "false" in file serviceprovider.cpp:202  
  
This usually means that some service (adding a shop or teleport to an npc that usually wouldn't or won't accept it) was being rejected and will work again once it is removed.   
  
This can also happen or have a similar error when tasks (quests) in/out are added to an npc that usually does not have them.  
  
Note: For shops you can try and remove specific items through trial and error (some seem to trigger this error, but it hasn't been confirmed as to which)