# Symptom
⁃ Khala Network block produce becoming slow
# Impact
⁃ Secure Workers: Mining reward reduce in 24 hours ⁃ Delegators: Delegation reward reduce in 24 hours
# Tracking Issue
⁃ 2 of 3 collators went offline · Issue #501 · Phala-Network/phala-blockchain · GitHub
# Status
⁃ Reason checked. Collators went offline
⁃ Quick fix: Restart collators
⁃ Solution: Adding more collaotrs afe issue 487 is fixed