Hello,
You need to update the Wi-Fi module’s firmware.
To do this, go to http://1.2.3.4/update (REPLACE 1.2.3.4 with your ProfiLux’s current local IP address).
Log in using the username ‘admin’ and the password ‘Starfish’ (unless you have changed it).
Upload the firmware.bin file that you previously extracted from the zip file available at https://www.aquariumcomputer.com/downloads/wifi-module-esp-update/