Squeak On Logic Pro X on playback

Hi, I've recently purchased a refurbished MacOS 13.2Ventura 27'' 3.3GHz 6-Core i5 32GB ram.

I'm using Logic Pro 10.7.9 and on playback my song every so often gives off a loud high-pitched squeak.

Does anyone have any idea as to what's going on?

I am using UJAM's 'Silk' and 'Amber2' plug ins. All the other plugins are Logic's.

Thanks,

Chris