I decided to pursue a PhD degree after a few years in industry, so I contacted a professor from the university where I had received my Diploma 3 years back. We had some conversations in the beginning of 2020, he was rather positive as I had good grades and I used to attend his lectures, so he proposed to work in the lab for a while to assess if this collaboration is going to work. I had started studying and meeting the rest of the team to get involved into the lab’s projects. I could not apply officially yet, since the PhD applications start on July every year. As coronavirus came, we all stopped going to the lab and we maintained a minimal communication online. We even worked on a project with the rest of the team, however I had really minor contributions, as I was still in the studying phase, and the project itself was not entirely in the field of research I am pursuing. This project finished in mid-April. From then on, I had no other communication with the professor. I was working online as a freelancer during April & May to generate some income, so I did not proceed much with studying.
I emailed the professor about 10 days ago about how to proceed and since I got no response, I messaged him on Skype 2 days ago. However, I did not get any answer. Is it possible that he changed his mind about having me work in his team as a PhD candidate, since we had no communication for around 1 month? I am very worried because I really wanted to work in this lab and do a PhD in general, and for now, this was my only option to enter the academic field. What would you do in my position? Is it going to be too much to send an email again or contact another member of the lab? Thank you in advance.