Set up dynamic AdWords remarketing

Set up dynamic AdWords remarketing for the online store on ImageCMS. He used to work, then he stopped. I enclose a Google letter describing the reasons why it doesn’t work, and they need to be fixed:
Hello, there!
Thank you for your patience.
We have solved the problem by your list for remarketing Product viewers (system-defined).
The fact is that you are trying to collect this audience according to the ecomm_pageType: "product" parameter, but the code itself is spelled out incorrectly.
You need to write the code according to our guide and then the audience will be filled.
Below is an example tag for a retail company. Special parameters are highlighted in green, the remarketing tag is blue, and unique dynamic values are highlighted in yellow. The names of special parameters and values should remain in English. For example, you should use the value of cart, not the "basket".
The code must be in JSON format, designed to transmit structured data across networks. A dynamic remarketing tag can be created based on an existing standard tag (if used). This will allow you to send additional information to AdWords.
The example below shows the parameters for a retail company. Adapt parameter names (such as ecomm_prodid) to your industry. Suitable parameters can be found below.
Var google_tag_params = {
Ecomm_prodid: "REPLACE_WITH_STRING_VALUE",
Ecomm_pagetype: "REPLACE_WITH_STRING_VALUE",
Ecomm_totalvalue: REPLACE_WITH_STRIING_VALUE
}


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If you have any further questions, please contact us – we will be happy to help.
That is, in the Adwords campaign itself, you do not need to do it, only configure the code correctly on the site. I'll give the site's address to the candidates. In the application, specify the time and cost. The deadline is not critical, but I will not renew, so immediately indicate the real one.