Hi Samrat,
which version of SAP HANA are you using currently?
This is generic alert from the Statistics server when the data collection does not finish in time
Do you have a Standalone statistics server?
Depending on the version you are on we have an option to migrate the Standalone statistics server to Embedded statistics server. SAP Recommends using Embedded Statistics server for better performance. Refer below SAP note for reference
1917938 - Migration of the statistics server for Revision 74 or higher