This error means that you have a file with hash 13da9eeff5a9150cf2135aaed4d2e337f97b8114, and this hash is not present in .git/objects/../, or it’s empty. When this error occurred, I only had this hash in the error, without the file path. Then I tried to do git gc --auto and git reset --hard. After one of these commands (these commands did not fix my problem), I got the path of the file that triggers the error.
You just need to generate the object hash:
git hash-object -w spec/routing/splits_routing_spec.rb
For more information see documentation. In the documentation, there is an additional way of repairing this error.
P.S.
This was the only way that was helpful for me.