You need download the package above at this link:
You need to use the above tool to do the wireless upgrades not the GHL desktop tool .
WiFi-Module-ESP-Update
Firmware and file system (web interface) for the WiFi module ESP (used in ProfiLux 4, Mitras LX 7 and ProfiLux Mini/Light WiFi) including update instructions Note: If you are upgrading from WiFi-version before 6961, you must install the filesystem from the file spiffs.bin either via upgrade in a...
www.aquariumcomputer.com
You need to use the above tool to do the wireless upgrades not the GHL desktop tool .