Getting Fatal error when generating pdf

Getting Fatal error when generating pdf  but not sure what causing this error, Below is the error I'm getting from services
All validations successfully done. Beginning CreatePDF operation execution 2022-12-13 16:59:48.749 [XNIO-1 task-14] ERROR c.a.e.d.m.b.s.CreatePDFFromHTML - Exception encountered while executing operation com.adobe.pdfservices.operation.exception.ServiceApiException: description ='Fatal error, Please check logs for details.'; requestTrackingId='Y6GzQ0h7Wj1e2GAdWMuBVapadrRcvtwY'; statusCode=500; errorCode=UNKNOWN at com.adobe.pdfservices.operation.pdfops.CreatePDFOperation.execute(CreatePDFOperation.java:212) at com.anthem.emep.dckr.microsvc.bbbookletservice.service.CreatePDFFromHTML.generatePdf(CreatePDFFromHTML.java:68)