When I try to upload attachments of size 1MB it fails to upload and shows internal error occurred. please find my Atlassian logs and Catalina logs below.

Catalina.out log:
14-May-2020 11:56:30.483 WARNING [http-nio-8080-exec-10] com.sun.jersey.spi.container.servlet.WebComponent.filterFormParameters A servlet request, to the URI http://jira.x.com/rest/activity-stream/1.0/preferences?_=1589437590429, contains form parameters in the request body but the request body has been consumed by the servlet or a servlet filter accessing the request parameters. Only resource methods using @FormParam will work as expected. Resource methods consuming the request body by other means will not work as expected.
14-May-2020 11:57:57.886 WARNING [http-nio-8080-exec-19] com.sun.jersey.spi.container.servlet.WebComponent.filterFormParameters A servlet request, to the URI http://jira.x.com/rest/jddap/1.0/attachment, contains form parameters in the request body but the request body has been consumed by the servlet or a servlet filter accessing the request parameters. Only resource methods using @FormParam will work as expected. Resource methods consuming the request body by other means will not work as expected.
14-May-2020 11:58:03.425 WARNING [http-nio-8080-exec-23] com.sun.jersey.spi.container.servlet.WebComponent.filterFormParameters A servlet request, to the URI http://jira.x.com/rest/issueNav/1/issueTable/stable, contains form parameters in the request body but the request body has been consumed by the servlet or a servlet filter accessing the request parameters. Only resource methods using @FormParam will work as expected. Resource methods consuming the request body by other means will not work as expected.
2020-05-14 12:00:00,381 Caesium-1-1 INFO anonymous Backup Service [c.a.j.bc.dataimport.DefaultExportService] Data export completed in 370ms. Wrote 20390 entities to export in memory.
2020-05-14 12:00:00,382 Caesium-1-1 INFO anonymous Backup Service [c.a.j.bc.dataimport.DefaultExportService] Attempting to save the Active Objects Backup
2020-05-14 12:00:01,622 Caesium-1-1 INFO anonymous Backup Service [c.a.j.bc.dataimport.DefaultExportService] Finished saving the Active Objects Backup
14-May-2020 12:07:18.340 WARNING [http-nio-8080-exec-1] com.sun.jersey.spi.container.servlet.WebComponent.filterFormParameters A servlet request, to the URI http://jira.x.com/rest/activity-stream/1.0/preferences?_=1589438237450, contains form parameters in the request body but the request body has been consumed by the servlet or a servlet filter accessing the request parameters. Only resource methods using @FormParam will work as expected. Resource methods consuming the request body by other means will not work as expected.
2020-05-14 12:09:08,743 Caesium-1-4 INFO ServiceRunner [c.a.j.p.h.service.ping.RefreshConnectionStatusJobHandler] Running RefreshConnectionStatusJobHandler...
2020-05-14 12:09:11,349 Caesium-1-1 INFO ServiceRunner [c.a.j.p.h.service.connect.InstallGlancesJobHandler] Running InstallGlancesJobHandler...
2020-05-14 12:09:11,349 Caesium-1-1 INFO ServiceRunner [c.a.j.p.h.service.connect.InstallGlancesJobHandler] There is no link to HipChat, no need to install glances.
Atlassian log:
2020-05-14T11:51:34.880+0530: 63817.188: [GC (Allocation Failure) [PSYoungGen: 244203K->17915K(227840K)] 722280K->506188K(752128K), 0.0692586 secs] [Times: user=0.09 sys=0.00, real=0.07 secs]
2020-05-14T11:52:12.253+0530: 63854.561: [GC (Allocation Failure) [PSYoungGen: 227835K->26110K(236032K)] 716108K->516593K(760320K), 0.0635251 secs] [Times: user=0.09 sys=0.00, real=0.07 secs]
2020-05-14T11:52:26.062+0530: 63868.370: [GC (Allocation Failure) [PSYoungGen: 236025K->14525K(230912K)] 726508K->505599K(755200K), 0.0537195 secs] [Times: user=0.07 sys=0.00, real=0.06 secs]
2020-05-14T11:55:50.122+0530: 64072.430: [GC (Allocation Failure) [PSYoungGen: 219266K->16206K(233472K)] 710341K->507288K(757760K), 0.0639880 secs] [Times: user=0.09 sys=0.00, real=0.06 secs]
2020-05-14T11:56:21.796+0530: 64104.104: [GC (Allocation Failure) [PSYoungGen: 221006K->15423K(230400K)] 712088K->506505K(754688K), 0.0720065 secs] [Times: user=0.09 sys=0.00, real=0.07 secs]