I received a traffic eChallan for me vehicle. Its dated 2018 ie 6 yrs ago!

So I received a new e challan. Its dated 2018 (6 yrs ago). Even the evidence image is of 2018 when I was in Mumbai. Its for no parking but nothing in the image shows me if its really no parking. Since its 6 yrs old I dont even remember where exaclty I had parked so how to even fight it. Why did I get a 2018 challan today? And should I pay it? Ive paid all my echallans on time on the same day.