What is to be done in case of errors while starting DB?

In few occasion we may face the problem with starting SQL Anywhere server for enabling POS Application and Back Office Application

1. What is to be done in case of “ASSERTION FAILURE” while starting DB?

or

2. What is to be done in case of “db srv16” while starting DB?

or

3. What is to be done in case of “missing transaction log” OR “cannot open transaction log file” while starting DB?

Log a ticket in Service Desk as a ‘Request’ and wait for assistance. In the ticket mention following: 

A. Date and time when error was first noticed. 

B. If any transaction has been done in the same day. If yes, date and time of the transaction. C. Last TCB matched or not. 

D. Last date of back up in C:\POSTALPOS_Backup.