0d215a50_LLER____Fix_Blue_Screen_Errors__Cause_of_Error
[Parameter 1] 0x01, 0x02, or 0x04 [Parameter 2] Pointer to pool header [Parameter 3] First part of pool header contents [Parameter 4] 0 [Cause of Error] 
The pool header has been corrupted.
What is STOP 0x000000C2 : BAD_POOL_CALLER? - Fix Blue Screen Errors
Cause of Error