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The template "crashsig" does not exist or has no approved revision. PL_DHashTableOperate
This is a generic crash signature that is attached to a number of different crashes. Try looking at other crashIDs to see if one of those crashes has a more specific crash signature that can help with troubleshooting.
The general crash troubleshooting steps may also have steps that help with this crash. You can also try providing a few crash IDs when you Get community support in case there is useful information in the crash report that isn't in the crash signature.