The binary component required for %1$S could not be loaded, likely because the wrong version combination is being used. You are using %2$S %3$S together with %1$S %4$S. Please check https://developer.mozilla.org/en/Calendar/Calendar_Versions for details.
Nid oedd modd llwytho'r pecyn deuaidd ar gyfer %1$S, mwy na thebyg oherwydd bod y cyfuniadau anghywir yn cael eu defnyddio. Rydych yn defnyddio %2$S %3$S ynghyd â %1$S %4$S. Gwiriwch https://developer.mozilla.org/en/Calendar/Calendar_Versions am fanylion.