Button "Read More" not working

Hello everyone,
I have the following problem:
I do not work the “Read More” button in the Blog articles.

If I go to the list of articles:

the articles are not cut and the “Read More” button does not appear.

Can you help me? It’s been a while since I’m banging my head and I can not figure out how to solve the problem.

Thank you

You should ask for support from your theme author. Depending on theme you might need to change some options, or define a manual excerpt etc. etc