with your database prefix before run these quires.
insert into `jos_js_job_fieldsordering` (fieldtitle,ordering,section,required,sys,field,cannotunpublish,published,fieldfor) values('Sub Category', 16, 20, 0, 1, 'subcategory', 0, 1, 13);
insert into `jos_js_job_fieldsordering` (fieldtitle,ordering,section,required,sys,field,cannotunpublish,published,fieldfor) values('Sub Category', 16, 20, 0, 1, 'subcategory', 0, 1, 3);
update jos_js_job_fieldsordering set ordering = ordering+1 where fieldfor = 3 and section >= 20 and ordering > 15;
update jos_js_job_fieldsordering set ordering = ordering+1 where fieldfor = 13 and section >= 20 and ordering > 15;