Strange cucumber problem

[Salaam]

Hello all,

At first, we were graced with what I thought were unusually large 'Lebanese' cucumbers (like the leftmost one in the last picture). After this first round of fruits, the next batch are all small and crinkly. What could it be? They're in an Earthtainer, and I think I've put plenty, maybe too much of granular organic fertilizer. I've attached some pictures.