Xporter null pointer exception with Tempo Timesheet

Problem: The user won't be able to export the log work due to a null pointer exception.

Steps to reproduce the error: On your JIRA instance, you must have to log work using JIRA and after this install the Tempo Timesheet. The log work it will be available on Tempo. Finally, disable the Tempo Timesheets.

Expected result: You must be able to export the log work without Tempo Timesheet when the log work was registered without Tempo Timesheet.

Log:

Error retrieving field WorklogsCount.
java.lang.NullPointerException
        at com.xpandit.jiraxporter.mapping.integration.TempoTimesheetMapLoaderV2.mapWorkLog(TempoTimesheetMapLoaderV2.java:106)
        at com.xpandit.jiraxporter.mapping.XporterFieldRetrieverUtils.addWorklog(XporterFieldRetrieverUtils.java:1151)
        at com.xpandit.jiraxporter.mapping.XporterFieldRetriever.lambda$getFieldRetriever$121(XporterFieldRetriever.java:1780)