Leather Sofa website generating 404 url's - Magento 1.9 version

[Aus007]

I have Magento 1.9 version. I have a unique issue. I can see lots of non existent 404 pages being created and crawled. This  happened after I installed a new theme. This is my leather Sofa Website 

404 urls which are auto generated. 

https://www.leathersofasale.co.uk/13

https://www.leathersofasale.co.uk/3

https://www.leathersofasale.co.uk/2 

and so on ...

Screenshot of technical website audit is attached .

[Gabriel Guarino]

Hi @Aus007,

Could you please attach the image in higher resolution?

Best regards.

Gabriel

[Aus007]

Please check here . It also supports magnifier .

http://imgur.com/a/virFb