fix bug that would cause error message EC.SYSTEM_ERROR_CLEANING_POOL to output incorrectly
fix bug that would cause error message EC.SYSTEM_ERROR_CLEANING_POOL to output incorrectly

tlaplus/tlaplus,lemmy/tlaplus,lemmy/tlaplus,tlaplus/tlaplus,lemmy/tlaplus,tlaplus/tlaplus,lemmy/tlaplus,tlaplus/tlaplus