No output after Helix Mac Driver 1.0.7

[Flaminia]

Hi all, new to this forum and hope someone can help me.

I've been using my Tascam DM3200 mixer for years now, but today it stopped it's output.....

What I did: I bought a Line6 Helix and wanted that to use as an aggregate input for in Cubase (9.5)
The sample rates weren't right (Cubase 44.1/Helix 48) so I figured out that in my Audi/midi config (I'm on a Mac pro early 2008/El Capitan) the sample rates of the Helix couldn't be changed (to 44.1) so for that I had to download the newest driver for it: now that works and I could change it to 44.1

Line6 provide a warning: IMPORTANT! Installing the Helix Mac Driver 1.0.7 precludes using Helix with the class-compliant OS X Core Audio driver.

and: 

If for whatever reason you want to uninstall the Helix Mac Driver:
1. Navigate to Macintosh HD/Library/Extensions. Inside the Extensions folder, you should see an item named "L6Helix.kext." Drag this file to the trash.

2. Empty the trash and restart your computer. Helix will return to using the class-compliant OS X Core Audio driver.

Indeed, my Tascam DM stopped working, so I uninstalled the Helix driver, but after that the DM still didn't gave output: I can see the signal coming in on the meterbridge: the led-bars move, and when I play something trough iTunes, it's like I forgot to switch the amp on.......(signal comes in)

On my Mac preferences/audio, I can choose internal speakers: that works, the TEAC and Helix are there too, but no sound from them

I've red that for the class-compliant OS X Core Audio driver I need the appleHDA.kext in my computer/library/extensions, but it's not there, so I re-installed El Capitan: still not there....

Been trying to figure this out for days now......

 

What am I missing here? hope someone can help me: cannot play my new Helix now and all my studio songs!

Thanks in advance,
Chris.