Too many "comments" are attached in the "Issue". For this reason, if you want to delete an "issue",

[Sema YILDIRIM]

Too many "comments" are attached in the "Issue". For this reason, if you want to delete an "issue", I get an error. What should I do?

[Nic Brough -Adaptavist-]

What error do you get when trying to delete?  The message above the referral number.

[Sema YILDIRIM]

Technical details

Log's referral number: a54070ce-4af3-41bb-80c2-27aaf76d571c

Cause

Referer URL: https://jira.logo.com.tr/secure/views/bulkedit/BulkOperationProgress.jspa?taskId=40923

java.lang.NullPointerException

java.lang.NullPointerException
 at com.atlassian.jira.web.action.issue.bulkedit.BulkOperationProgress.doProgress(BulkOperationProgress.java:76) [classes/:?]
 at sun.reflect.GeneratedMethodAccessor5181.invoke(Unknown Source) [?:?]
 at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) [?:1.8.0_102]
 at java.lang.reflect.Method.invoke(Method.java:498) [?:1.8.0_102]
 at webwork.util.InjectionUtils$DefaultInjectionImpl.invoke(InjectionUtils.java:70) [webwork-1.4-atlassian-30.jar:?]
 at webwork.util.InjectionUtils.invoke(InjectionUtils.java:56) [webwork-1.4-atlassian-30.jar:?]
 at 
org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61) [tomcat-util.jar:8.5.6]
 at java.lang.Thread.run(Thread.java:745) [?:1.8.0_102]

[Nic Brough -Adaptavist-]

That looks like https://confluence.atlassian.com/jirakb/bulk-operations-fail-with-a-nullpointerexception-313467997.html to me.  But I'd want to read the full log as well, to see if there are any other errors in that area of it.