What to do if there is a sharp drop in traffic from Adwords ads?

Question

Google Analytics

There has been a sharp drop in traffic coming from Adwords ads. For 2 months everything was fine - from 100 to 200 clicks with about 1000 impressions, and the last week only about 30-40 clicks with 300-500 impressions.
What could have caused such a drop in traffic? Contextual advertising settings have not changed AT ALL (Contextual advertising type - "Only search network - All functions").

Answer 1

There is still little information.
First, I would advise you to double-check to see if any changes have been made. Perhaps they were introduced, but you do not consider them capable of influencing the volume of traffic. It is better to double-check this through the "History of changes" report in the "Tools".
Secondly, check whether negative keywords have been added to the campaign and whether the phrase matching mode has changed.
Some of the bad negative keywords may have blocked a large number of phrases from being shown.
Thirdly, check what budget settings you have. Perhaps earlier in the campaign there were overspending, but now Google Adwords is trying to compensate for them.
Fourthly, is there a link to a Google Analytics account, conversion tracking and any conversion functions. Perhaps there was a mistake in the conversion tracking on the site and Google cannot achieve the cost per conversion that it was able to achieve before.
Fifth, what display mode is worth - "uniform (standard)" or "accelerated". At "uniform" impressions are carried out episodically and are artificially limited.
There are many options, these are the main ones. Your CTR has not fallen, only the number of impressions has fallen. So they are limited in some way. As a cardinal option, you can copy the campaign again and temporarily slightly (by 10-15%) increase the amount of the budget for it and the rates.

Answer 2

competitors and seasonality

Answer 3

Your bids are below the new advertiser's bids, or below the old one who raised their bids to outbid you.