[Csnd] not rendering to disk

I’m not able to write the output to disk. What is the problem?
It is a simple sweep.
I’m using CsoundQt Version 0.9.8.1 on Catalina.
Also few glitches occur during the audio reproduction.

Attached, the .csd file and the screenshot of CsoundQt settings for the tabs Run and Advanced.

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sweep.csd (1.15 KB)

I add the first part of the console output which report this error:

WARNING: could not open library ‘/Library/Frameworks/CsoundLib64.framework/Versions/6.0/Resources/Opcodes64/librtjack.dylib’ (-1)

did you push the "render to file" button? or which one?