Most likely your issue is structured data.
To eliminate where the issue is, go to Google Merchant Center > products > all products > click on a product that has the issue.
Now scroll to the bottom and view the attributes, you will see the data feed (maybe content API) feed, and by clicking on it you can see what the values are.
You will also see what is collected from the site, now if this is wrong. Then this means your structured data is incorrect.
You can install the correct code from here: https://feedarmy.com/kb/shopify-microdata-for-google-shopping/
Thank you for the reply!
The price in the feed and structured data is the same. But we display our prices in our shop without decimals you can look at the following product.
In the feed and structured data the price is 194.25 sek but the displayed price is 194 sek. Since the Swedish peso in worth next to nothing we hardly use decimals in our shops. I recall it is the default setting for prices when you select Swedish language for you shop in Shopify.