Hi
Those two graphs are for different stats - the DSLstats one is for Bearer 0 while that for MDWS is for Bearer 1.
You may not see stats for all minutes in MDWS on the 24 hours graph as, in your case, the graph is 680 pixels wide but there are 1440 minutes in a day so over half get discarded for that plot.
But I've checked in the raw database and there were no CRC errors at all uploaded to MDWS within the period that is shown on the DSLstats graph, certainly not between 12:38 and 12:48 .