Ad (as image) at the end of page should be removed. Check, please.

(Also, you preserved it without preserving link.)

You can found this ad on many pages, for example:
https://www.telegraf.rs/hi-tech/gedzeti/2954959-evo-kako-da-povezete-svoj-tv-sa-kompjuterom-zvucnikom-ili-gejming-konzolom

https://www.telegraf.rs/hi-tech/zanimljivosti-hi-tech/2926556-telegraf-na-najvecem-sajmu-tehnologije-na-svetu-vestacki-ljudi-i-umrezeni-svet-gde-dominiraju-automobili-bez-vozaca-semafora-i-guzvi-postaju-realnost-foto-video

etc...