After update panel not working ,ERROR: Could not find a version that satisfies the requirement IPy==

ERROR: Could not find a version that satisfies the requirement IPy==0.75 (from -r /usr/local/CyberCP/requirments.txt (line 27)) (from versions: none)
ERROR: No matching distribution found for IPy==0.75 (from -r /usr/local/CyberCP/requirments.txt (line 27))

What can i do