Delay in work permit processing is affecting my work. How to address the gap in my CV? I am worried about my future prospects I am an international student who's currently in a mess regarding my work permit application. I was initially supposed to get my permit the latest by March. But now, I don't know when my application will come through. I completed my Ph.D. thesis submission in December. Now, my Ph.D. supervisor had offered me a postdoc position and  I was to start it as soon as I get my permit. However, my future is seeming quite bleak at the moment. I can't return to my home country as my country is under lockdown and my application is under processing.

I am panicking as I don't have any official position since January. I have been working on the pending Ph.D. projects since February and my advisor has ensured me that he can mention in my future recommendation letters that I had begun my postdoc in February. 

However, the financial situation apart (which is really bad), I am getting disheartened about my freefalling academic profile. I am having anxiety over my predicament for last few weeks. I am not able to concentrate on my work and not able to study thereby wasting more time. My decision of joining my Ph.D. supervisor for my first postdoc was to learn and explore a new technique that would have enabled me to expand my skillset and would have made me more suitable for good positions.

But now, I am just wasting my time, working 2 hours or less every day and getting minimal work done. I am not getting the motivation to work hard or study new topics.

Is there any advise, comments that you can provide under my condition? How to address the gap in my CV? What should I do?
I can't help you with your mental issues about loss of focus, but it would be good to keep in mind that you aren't alone. Everyone else currently studying for a doctorate or in a non-permanent position is in the same mess caused by things completely outside your control or influence. You aren't falling relative to anyone unless you give up. The "gap" will mean very little if anything. People will understand it because they (we) too are living through it. 

What governments do about work permits is also outside your control. Make progress on the things you can control and influence. 

See a counselor if you need to about depression, but be assured that people will take the current worldwide disruption in to account when things settle down. In some ways, you might even think of it as a respite from schedule demands since the delays are inevitable. 

Also, you can't change past decisions. "... would have enabled ..." means nothing at this point. You are where you are. Make a schedule, get some exercise, take a nap, talk to a counselor, consult with your advisor, ... anything. But also relax. If the world ends it won't matter. If it doesn't then you will get back on track along with everyone else. 

Have patience with yourself as with everyone.