1. Stop your server from the game panel.
2. Visit the following link: https://github.com/rehlds/ReHLDS/releases
This link takes you to GitHub page where you'll see Latest in green and Assets below. Download the rehlds-bin archive (the numbers after this text indicate the ReHLDS version).
3. In the downloaded archive, navigate to bin/linux and find the file engine_i486.so.
4. Copy and paste the following file in your main server directory (before the cstrike folder):
engine_i486.so5. Restart your server from the game panel.
THE MODULE FILE GOES OUTSIDE THE CSTRIKE FOLDER!
The update of the ReHLDS module is completed.