nothing happens when i press play

Hi just installed median. When i press play the launcher drops down to my task bar then pops back up, the game doesnt start, and no error log showing

Restart your PC. If this keeps happening after the reboot, open the Launcher and go into its settings page, there click on "Application Data" (bottom-right corner) and in the "save folder" find and delete the file "preferences.json" then close the Launcher and restart the PC. If you do not have that file in the folder or deleting it did not solve the problem, then delete the whole "MedianXL folder" (which is the folder that opens up when you click on "Application Data") but first remember to backup your characters from the save folder if you play Single Player, finally close the Launcher and restart the PC.
Also make sure the installation path for Median XL (not the Launcher's one) matches with the installation path of Diablo2+LoD. You can check the Median XL's installation path in the setting page of the Launcher, to access click on the cog "⚙️" icon (up-right) in the Launcher window. If you do not remember where you installed Diablo2 LoD you can check its installation path by 'right-clicking' on Diablo2 LoD original shortcut, then selecting "Properties" and in the "Shortcut" tab read the path written in "Target:", the needed path should ends with the folder "Diablo II".