Whenever wabbajack failed the installation, first close wabbajack and simply try restarting wabbajack a second time. If it still fails the installation, these are the most common issues:
Unable to download Skyrim_Default.ini
Open your Steam library
Right click The Elder Scrolls V: Skyrim Special Edition, and choose "Properties..."
Set Language to English
If that didn't resolve the issue try the next solution below
Missing game file Data_ccbgssse037-curios.bsa (and other game files)
In your Steam installation folder for Skyrim, go into the Data folder
Delete Data_ccbgssse037-curios.bsa and Data_ccbgssse037-curios.esl
Open your Steam library
Right click The Elder Scrolls V: Skyrim Special Edition, and choose "Properties..."
Open the tab "Installed files"
Click on "Verify integrity of game files"
All downloads from Nexus mods failed
Open the settings in wabbajack.
Click logout for Nexus Mods
Click login for Nexus Mods
You might have to wait 10 minutes before you can retry.
Loverslab is stuck on "Download begins in seconds"
Go back to the main page by clicking on the modname in the menu at the top.
Click the green download button, and try downloading again.
Top menu example
Failed to download file from Loverslab
Make sure you're logged in at the top left of the page.
Download the missing file manually from the Lover's Lab Mods page.
Place the file in the download folder. Do NOT unpack the file.
If multiple mods are failing, you'll likely have to download all the Loverslab mods manually.
Files are corrupted when hashing
Check that your drive isn't full
Delete the corrupted files, and restart Wabbajack.
If the files keep getting corrupted it's possible an antivirus is interfering. There are several different antivirus programs that can cause issues with Wabbajack installs and running the mod lists. Please see the additional information on Antivirus Troubleshooting at the bottom of the FAQ page. or click HERE.