يا ترى الخطا فين:I couldn't buy a newspaper because the shop wasn't opened.

[ابو بيشو]

اليك منى كل احترام وتقدير
I couldn't buy a newspaper because the shop wasn't open.
Use opened to describe an action and open to describe a state.
Compare: 'The shop was opened at 8 a.m. and stayed open until 6 p.m.'