Gaining weight after month of deficit

Hey yall, i just need advice. I’ve been in a deficit from the start of December and have lost a nice amount of weight, at about 4 kg, from 80.6 to 76.5.

My intake is around 2000 and i do weightlifting about 5 times a week. The only major speed bumps is that i got sick for almost a week and couldn’t go to the gym and also was traveling for 2 days during that time frame, so tracking was a bit difficult.

Other than that, things seemed to be fine. However, after i got back from the trip, i had lost some progress, so i got back to it immediately, i went up maybe 1 or 2 kg?

Nonetheless, I continued with my deficit of 2000 calories and went down a couple of grams then up again, and i seem to be stuck in a plateau(at around 79.5-79.9. This is the most ive been consistent and i really need help here to find out what im doing wrong and if theres anything i should change! Thank you.

Edit: forgot to mention i also had 2 cheat days

The timeline also seems confusing so here it is

Day 1-2 : traveled (couldn’t track) Day 3-6 :got sick, couldn’t go to the gym (was tracking) Day 7-8: out with my grandparents (couldn’t track)