There are a few reasons why Marketplace might keep crashing on your iPad.
Your iPad may not have enough storage space. Marketplace requires a certain amount of free space in order to function properly. If your iPad is full, Marketplace may crash as it tries to load new data.
Your iPad may be running out of memory. Marketplace also requires a certain amount of memory in order to function properly. If your iPad is running low on memory, Marketplace may crash as it tries to load new data or features.
You may be using an outdated version of Marketplace. Marketplace is constantly being updated with new features and bug fixes. If you are using an outdated version of Marketplace, it may be more prone to crashing.
You may have a corrupted Marketplace file. If a Marketplace file becomes corrupted, it can cause the app to crash.
If you are experiencing Marketplace crashes on your iPad, try the following solutions
Free up some storage space on your iPad. Delete any unnecessary apps, photos, or videos.
Restart your iPad. This can often help to resolve minor issues.
Update Marketplace to the latest version. You can check for updates in the App Store.
Reinstall Marketplace. This will delete any corrupted files and install a fresh copy of the app.