Verify the Easy Anti-Cheat installation
It may be so that an external third-party software has modified the Easy Anti-Cheat service installation, preventing it from functioning properly on Ragnarok. Verify that the Easy Anti-Cheat service on your computer is enabled as following.
Open the command-line. You may need administrator rights. Follow this guide for instructions on running a command with administrative rights.
Type in the following command and press Enter.
Among the listed services find Easy Anti-Cheat and double-click it.
If the Startup type for the service is 'Disabled' - change it to 'Manual' and Apply the settings.
The menu can now be closed.