If this command was run in response to your question/issue, it is likely because switching away from the launcher you are currently using would fix your problem.
From our experience, the most stable launcher by far is ATLauncher, also known as ATL. Keep in mind that ATL is NOT related to TLauncher in any way, and is not a cracked launcher.
To install ATL, do the following:
1. Go to https://atlauncher.com/download. If you are on MacOS, then choose the "Jar" version under the "Other" tab.
2. Install and run the setup, then open the program.
3. Login to your Microsoft account that owns the Java Edition of Minecraft from the Accounts tab on the right. This process is 100% safe, as it goes directly through Microsoft. ATL doesn't see your account credentials.
4. Go to the Packs tab on the right, then click "Curseforge" on the left.
5. Search the modpack you wish to download.
6. Click "Install". Then, follow the on-screen directions.
7. Go to the Instances tab, and click "Play" on the modpack you downloaded. If you ever see an "Update" button on the instance, click it.
This video explains the process: https://youtu.be/xMYW1wMbmkM
To transfer your Curseforge world to ATL, simply right click the modpack on Curseforge, or click the 3 dots, then click "Open Folder". Copy the Saves folder, then click "Open Folder" on ATL and paste the Saves folder there. Do the same with the XaerosMinimap folder, or the Journeymap folder, to transfer over any waypoints you've created.
Because ATL downloads the exact same files as Curseforge does, your world will be the exact same and you will be able to join the same servers. ATL also works without an internet connection (after you've installed the modpack, of course), and does not have any bloat from Overwolf. You are free to uninstall both Overwolf and Curseforge with ATL installed.