Error when using Kanban board

[Daniel Eliades]

the following appears when one of my users selects their kanban board from their project

Details
Exception: Uncaught TypeError: Cannot read property '1' of null
Resource: https://agile.pros.com/s/6b590d4ec5eae51782f352a3e6ad7c33-CDN/-60lrsk/77002/8b427e35588b7d0c6096d15ace1e61c7/9510f9fc3214e8509ceef8c23a2cd123/_/download/contextbatch/js/_super/batch.js?locale=fr-FR
Line: 490
Column: 336
Environment
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/76.0.3809.132 Safari/537.36
Stack trace
TypeError: Cannot read property '1' of null
at https://agile.pros.com/s/6b590d4ec5eae51782f352a3e6ad7c33-CDN/-60lrsk/77002/8b427e35588b7d0c6096d15ace1e61c7/9510f9fc3214e8509ceef8c23a2cd123/_/download/contextbatch/js/_super/batch.js?locale=fr-FR:490:336
at Function.l (https://agile.pros.com/s/6b590d4ec5eae51782f352a3e6ad7c33-CDN/-60lrsk/77002/8b427e35588b7d0c6096d15ace1e61c7/9510f9fc3214e8509ceef8c23a2cd123/_/download/contextbatch/js/_super/batch.js?locale=fr-FR:491:35)
at Object.getIssueCountLabel (https://agile.pros.com/s/1449092413ff5500d48c405d91d957be-T/-60lrsk/77002/8b427e35588b7d0c6096d15ace1e61c7/2c1f69e21e08002111ffb217707415a2/_/download/contextbatch/js/greenhopper-rapid-non-gadget,atl.general,gh-rapid,jira.project.sidebar,com.atlassian.jira.projects.sidebar.init,jira.general,jira.global,-_super/batch.js?agile_global_admin_condition=true&is-server-instance=true&jag=true&jaguser=true&jira-nps-enabled=true&locale=fr-FR&nps-acknowledged=true&nps-not-opted-out=true&richediton=true&sd_...)
at Object.getSwimlaneTitle (https://agile.pros.com/s/1449092413ff5500d48c405d91d957be-T/-60lrsk/77002/8b427e35588b7d0c6096d15ace1e61c7/2c1f69e21e08002111ffb217707415a2/_/download/contextbatch/js/greenhopper-rapid-non-gadget,atl.general,gh-rapid,jira.project.sidebar,com.atlassian.jira.projects.sidebar.init,jira.general,jira.global,-_super/batch.js?agile_global_admin_condition=true&is-server-instance=true&jag=true&jaguser=true&jira-nps-enabled=true&locale=fr-FR&nps-acknowledged=true&nps-not-opted-out=true&richediton=true&sd_...)
at https://agile.pros.com/s/1449092413ff5500d48c405d91d957be-T/-60lrsk/77002/8b427e35588b7d0c6096d15ace1e61c7/2c1f69e21e08002111ffb217707415a2/_/download/contextbatch/js/greenhopper-rapid-non-gadget,atl.general,gh-rapid,jira.project.sidebar,com.atlassian.jira.projects.sidebar.init,jira.general,jira.global,-_super/batch.js?agile_global_admin_condition=true&is-server-instance=true&jag=true&jaguser=true&jira-nps-enabled=true&locale=fr-FR&nps-acknowledged=true&nps-not-opted-out=true&richediton=true&sd_...
at Array.forEach ()
at Function.b.each.b.forEach (https://agile.pros.com/s/6b590d4ec5eae51782f352a3e6ad7c33-CDN/-60lrsk/77002/8b427e35588b7d0c6096d15ace1e61c7/9510f9fc3214e8509ceef8c23a2cd123/_/download/contextbatch/js/_super/batch.js?locale=fr-FR:973:141)
at Object.o.renderSwimlanes (https://agile.pros.com/s/1449092413ff5500d48c405d91d957be-T/-60lrsk/77002/8b427e35588b7d0c6096d15ace1e61c7/2c1f69e21e08002111ffb217707415a2/_/download/contextbatch/js/greenhopper-rapid-non-gadget,atl.general,gh-rapid,jira.project.sidebar,com.atlassian.jira.projects.sidebar.init,jira.general,jira.global,-_super/batch.js?agile_global_admin_condition=true&is-server-instance=true&jag=true&jaguser=true&jira-nps-enabled=true&locale=fr-FR&nps-acknowledged=true&nps-not-opted-out=true&richediton=true&sd_...)
at Object.o.show (https://agile.pros.com/s/1449092413ff5500d48c405d91d957be-T/-60lrsk/77002/8b427e35588b7d0c6096d15ace1e61c7/2c1f69e21e08002111ffb217707415a2/_/download/contextbatch/js/greenhopper-rapid-non-gadget,atl.general,gh-rapid,jira.project.sidebar,com.atlassian.jira.projects.sidebar.init,jira.general,jira.global,-_super/batch.js?agile_global_admin_condition=true&is-server-instance=true&jag=true&jaguser=true&jira-nps-enabled=true&locale=fr-FR&nps-acknowledged=true&nps-not-opted-out=true&richediton=true&sd_...)
at Object.g.renderPoolAndDetailView (https://agile.pros.com/s/1449092413ff5500d48c405d91d957be-T/-60lrsk/77002/8b427e35588b7d0c6096d15ace1e61c7/2c1f69e21e08002111ffb217707415a2/_/download/contextbatch/js/greenhopper-rapid-non-gadget,atl.general,gh-rapid,jira.project.sidebar,com.atlassian.jira.projects.sidebar.init,jira.general,jira.global,-_super/batch.js?agile_global_admin_condition=true&is-server-instance=true&jag=true&jaguser=true&jira-nps-enabled=true&locale=fr-FR&nps-acknowledged=true&nps-not-opted-out=true&richediton=true&sd_...)
FILTRES RAPIDES:DeadLinesUpdated < 7mdTo AssignMes demandes