Positions on the near-top - what's next?

Question

Search Engine Optimization

There is a site for the repair of household appliances and the sale of spare parts for it.
It started off well, at the very first stage everything was licked from all sides, traffic lanes, orders grew, positions were all over the site, and according to the promotion plan, 90% of the keys were in the top.
But in one of some minted Yandex updates, one of the sections of the site, which is about repairing equipment, sank in positions and already, yes, it doesn’t want to get out to the top, it sticks out in the near top - up to 20th places.
Let's imagine that all the technical and "convenient" parts of the promotion are done and done well, no worse than competitors for sure. Imagine that the site, or rather, its sections, are completely relevant, and there is nothing to complain about ... BUT.
Positions are not growing, and how to correct the situation has long been unclear. You can't complain about the traffic and the lack of orders, in any case, because where the sickle mows, it is replaced by the context, but I would like organics.
Surely, many had such sites, according to which everything seemed to be done, but somehow it is necessary to pull up what is available, while not sucking it out of your finger.
Buy eternal?

Answer 1

Did you talk to Yasha? Are there no sanctions? Maybe your link is bad? Although then, most likely, positions throughout the site would have sank.
How long have you been hanging like this?

Answer 2

Well, what's the problem? If a page is in the top 30, it means that it is either under-optimized or over-optimized, or PF kicked it out of the top.
Give a link to the pages that sank and CL on them. (It is possible without sya :) )

Answer 3

It's hard to guess on the coffee grounds, give a link - you have to look.
Or order a paid audit and correct what they wrote there.