During lockdown businesses all over the world have been affected very differently. Some businesses have taken a massive hit and have either had to atop trading altogether or have had to try and find alternative ways in which they can still sell their products or services. Some businesses have boomed or may of just been set up due to the increase demand in a product or service they sell. It may be that your business was affected massively during the first lockdown but not so much now as you have had time to get procedures in place to allow you to continue trading.
If you are tracking the visits to your site and have noticed a dip in traffic then you need to investigate it. If you have been trading for more than a year it is often worth check back to see if you noticed the same thing this time last year as it could be a seasonal trend. With lockdown, many businesses are getting a lot less traffic to their site as people are worried about spending too much money when there is so much uncertainty around still. Hopefully once things start to get back to normal a little and restrictions begin to ease, you should notice your traffic starting to come back up.