Here's a great guide if you're not familiar with it already
Retraction is the key to reducing stringing. Find out how to perfect your Cura retraction settings (including the coasting settings).
all3dp.com
I'd download one of teh sample models that is a set of pointy towers. Then do a series of tests, varying your restriction distance and speed.
i'm just guessing based on that stringing thats what your problem is, but if you have not yet, before you even do that, do a temperature tower to get it dialed into the right temp.
In my experience the actual "good" temp range of most filaments varies widely by MFR.
Also - is that regular PLA? Is so... my personal suggestion is, get some PLA+ or Strong PLA. Its stronger, more robust to UV, and more importantly prints hotter and is less susceptible to warping AND is more robust to temperature fluctuations.