Bosch 300 Nexxt Series stops draining after rinse cycle?

I have a bosch washing machine that I purchased going back about 7-8 years. It’s a 300 Nexxt series and a front load. This past year it’s been not draining at times after the rinse cycle. We get an E:13 error code.

I’ve opened the drain area under the machine (white twist plug) and the first time this was done, there were some things in there I had to remove. Since cleaning the drain, there really hasn’t been anything there at all.

Sometimes I have to lift the washer up and back down in order for it to kick into drain. Doing this and turning it on and off.
I haven’t checked the hose line from the pump to the drain yet and fear since it’s 8 years old, it could need a new pump.

We always wash on cold (normal) settings and I think I might try another setting just to see if this happens on them as well.

Any suggestions? Ideas?

Thanks
Spankey73

I tried using the permanent press mode and it cycles fully to the end? Ran three loads?

On normal it doesn’t drain after the rinse cycle?
Any thoughts???