There are some stock movements between storage locations which are not processed completely.
You can check LQ01 and LU04 with your colleagues to determine the cause.
It seems that somebody forgot to post confirmation for some production order as well.
The procedures for clearing the technical storage types before physical inventory are part of the end-user documentation. Please check there what is the recommended approach for your specific warehouse solution, especially if you have an external warehouse system connected or if you use mobile devices.