Hi Winnie,
After the installation was completed, you would have got a message saying "Crystal Server installation completed successfully" or Crystal Server installation ended with warnings.
Check if you are able to login to the Central Management Console (CMC) and whether all the servers are in Running status.
As you said, the ErrorsAndWarning.log would provide the information of the errors or warnings generated from installation.You can check these errors for any specific errors.
However, there isn't a pattern available.
In an ideal situation, all the servers under CMC should be in Running status.
Regards,
Sharvari