Double images on Category Archive page plus lack of excerpt.

Hi. 2 little problems with my website.. 1. https://www.helloessex.co.uk/essex-community-projects/ When you click on post category, on Category Archive page you have got double images.. And i don’t know why..

2. On Category Archive page i don’t see excerpt (i wrote excerpt in post – link above)..

Thanks in advance fofr help.

Remik Woroniecki