The installer contains an uninstall option. Try starting VRMod with and without SteamVR already running in the background. Make sure SteamVR Desktop Game Theater is disabled and the game is not running in it.
There has been one case of Reshade causing this error. In 99% of cases this means the module files are not in the right places. Make sure the two controller poses (pose_lefthand and pose_righthand) are mapped to the controllers. If default bindings are not available for your controller type you need to create new binds. This is likely caused by bad controller bindings. Note that it's possible to have multiple GMod installation locations, especially with multiple drives / partitions. If it still shows an old version in-game, the updated module files have not been added to the correct location.
Some browsers and networks can serve old versions of downloads due to caching systems. zip and updating the files manually like this. If it fails you can also try downloading the. The installer can be used to update the module. Common problems / FAQ Error: module update required
