Went to Thomas Wictor;s Twitter feed. Last one was Mar 18
He has been following the activity in Iran very closely so this suggests that someone asked him to lay low until an op is over.
He is especially good at exposing the GCC infiltration forces and their highly trained and unusual tactics to use just the right amount of force with no collateral damage.
Armenia borders Iran. Why block Armenian frequencies? Must be Iran and maybe Russia is involved too.