Fixed an issue where getting frequent stacks could throw an exception if the search query was invalid.
Fixed an issue where getting frequent stacks could throw an exception if the search query was invalid.

exceptionless/Exceptionless,adamzolotarev/Exceptionless,exceptionless/Exceptionless,exceptionless/Exceptionless,adamzolotarev/Exceptionless,adamzolotarev/Exceptionless,exceptionless/Exceptionless