Broken wire repair advice

Hi. I'd be very grateful if anyone can offer me some advice please.

My washer (BEKO WM 74155LS) has a broken wire on the motor connection block on the washer side connector. I had the motor out a long while ago and I cut the tiewrap that secured the wires but I made the silly mistake of forgetting to resecure the wires. I believe this caused the breakage due to excessive vibration.

I've posted a picture of the connector. There's enough slack to trim back all the wires and make good but it's not obvious to me how I release the wires. If it's possible with this type of connector could you tell me how to do this please? If not, could I replace the connector? If so could I use a simple terminal block? If not, what is the connector called im looking for?Or should I get a new harness and replace that section?

I could easily bin it and get a new one and save myself the hassle but that would be too easy.

All advice welcomed and appreciated.

Thanks