I have tried all below solution & all thing is fine ---
First reason:- Please check the following for your products a) Product is out of stock b) Product status is Disabled c) Product visibility does not include Catalog bazoocam d) Product is not assigned to that particular website
Second Reason:- Indexing Issue Go to your root directory via terminal and run ===>> php bin/magento indexer:reindex
Third Reason:- Maybe one of the product is stuck via indexing Go to the database and omegle search for "indexer_state" table. Manually set status = "working" to "valid"/"invalid"
or run ==>>>> update magento.indexer_state set status='invalid' where status ='working'