If your object was allocated with `allocShared0` then it must be de-allocated with `deallocShared`.
[https://nim-lang.org/docs/system.html#allocShared0,Natural](https://nim-lang.org/docs/system.html#allocShared0,Natural) [https://nim-lang.org/docs/system.html#deallocShared,pointer](https://nim-lang.org/docs/system.html#deallocShared,pointer)
