In the end, I just started the alingment all over, using the same dataset but with GPS this time, and I was able to process a new model. Thank you for your asistance.
About the control points, no, I couldn’t delete the errors, although I didn’t need to. Those just indicate the difference when compared to two or more photos, so sometimes it’s helpful when an alignment is particulary bad.
This thread can be marked as resolved. (I don’t know how, tho)