Error in the site: The voice is not played automatically
Some times the voice is not played automatically but when I press the ctrl+space (or click on the voice button) then it is played.
It is not only the voice of the text but also the sounds for successful or fail and the voice when I move the mouse on the new words are not played too.
Today I tried both chrome and firefox but none is working! That's while I didn't have any problem yesterday.