[FSTORE-1704] Improve error message when read from embedding fg #1341

Job	Run time
Lint and Stylecheck	12s
Unit Tests (Local TZ)	3m 7s
Unit Tests (Pandas 1.x)	2m 23s
Unit Tests (3.8)	2m 51s
Unit Tests (No Optional Dependencies)	2m 15s
Unit Tests (3.9)	2m 39s
Unit Tests (Typechecked)	3m 56s
Unit Tests (Windows)	10m 7s
Unit Tests (3.10)	3m 14s
Unit Tests (Windows) (Local TZ)	9m 19s
	40m 3s

Provide feedback