Our module is not compatible with Magento 2.3.6 at this time, so it causes the issue.
To solve this issue, we would like to give you the guide as below:
Step 1: Change the file app/code/Bss/MultiStoreViewPricingPriceIndexer/Model/Indexer/Product/Price/TableMaintainer.php
Step 2: Replace the fixed file on the site
Step 3: Clear the cache
Please check and follow our guide.
If you need any further support, please feel free to contact us.
We'd like to help.