I found a few nuggets off Wiki:
"The 1930s saw a period of instability in the relations between the Maltese political elite, the Maltese Catholic church, and the British rulers; the 1921 Constitution was suspended twice. First in 1930–32, when British authorities assumed that a free and fair election would not be possible following a clash between the governing
Constitutional Party and the Church
[48][49] and the latter's subsequent imposition of mortal sin on voters of the party and its allies, thus making a free and fair election impossible. Again, in 1933 the Constitution was withdrawn over the Government's budgetary vote for the teaching of Italian in elementary schools, after just 13 months of a Nationalist administration. Malta thus reverted to the Crown Colony status it held in 1813. "