Hi all

I try to upgrade module from v15 to v16 

this.el.classList.toggle("o_fullscreen", mode === "fullscreen");  

previous line cause this error :

web.assets_backend.min.js:680 OwlError: An error occured in the owl lifecycle (see this Error's "cause" property) at handleError (http://localhost:8076/web/assets/10292-cdcea3b/web.assets_common.min.js:1472:101) at owl.App.handleError (http://localhost:8076/web/assets/10292-cdcea3b/web.assets_common.min.js:2098:29) at MountFiber._render (http://localhost:8076/web/assets/10292-cdcea3b/web.assets_common.min.js:1497:19) at MountFiber.render (http://localhost:8076/web/assets/10292-cdcea3b/web.assets_common.min.js:1495:6) at ComponentNode.initiateRender (http://localhost:8076/web/assets/10292-cdcea3b/web.assets_common.min.js:1563:47) Caused by: TypeError: Cannot read properties of undefined (reading 'fullscreen') at WebClientEnterprise.template (eval at compile (http://localhost:8076/web/assets/10292-cdcea3b/web.assets_common.min.js:2056:374), :11:23) at MountFiber._render (http://localhost:8076/web/assets/10292-cdcea3b/web.assets_common.min.js:1496:96) at MountFiber.render (http://localhost:8076/web/assets/10292-cdcea3b/web.assets_common.min.js:1495:6) at ComponentNode.initiateRender (http://localhost:8076/web/assets/10292-cdcea3b/web.assets_common.min.js:1563:47) handleError @ web.assets_backend.min.js:680

Any Idea how to solve this

Thanks