Error Joplin encountered a fatal error and could not continue. To report the error, please copy the *entire content* of this page and post it on Joplin forum or GitHub. Message Cannot read property 'toLowerCase' of undefined Version info Joplin for Desktop Copyright © 2016-2020 Laurent Cozic Joplin 1.3.15 (prod, darwin) Client ID: 0691431453bc49a19de06d3e0123c2e1 Sync Version: 2 Profile Version: 34 Keychain Supported: Yes Revision: 03b7402 (master) Stack trace TypeError: Cannot read property 'toLowerCase' of undefined at /Applications/Joplin.app/Contents/Resources/app.asar/lib/components/shared/side-menu-shared.js:57:18 at Array.sort () at Object.shared.renderTags (/Applications/Joplin.app/Contents/Resources/app.asar/lib/components/shared/side-menu-shared.js:53:7) at SideBarComponent.render (/Applications/Joplin.app/Contents/Resources/app.asar/gui/SideBar/SideBar.js:452:35) at finishClassComponent (/Applications/Joplin.app/Contents/Resources/app.asar/node_modules/react-dom/cjs/react-dom.development.js:17039:31) at updateClassComponent (/Applications/Joplin.app/Contents/Resources/app.asar/node_modules/react-dom/cjs/react-dom.development.js:16994:24) at beginWork$1 (/Applications/Joplin.app/Contents/Resources/app.asar/node_modules/react-dom/cjs/react-dom.development.js:18505:16) at HTMLUnknownElement.callCallback (/Applications/Joplin.app/Contents/Resources/app.asar/node_modules/react-dom/cjs/react-dom.development.js:347:14) at Object.invokeGuardedCallbackDev (/Applications/Joplin.app/Contents/Resources/app.asar/node_modules/react-dom/cjs/react-dom.development.js:397:16) at invokeGuardedCallback (/Applications/Joplin.app/Contents/Resources/app.asar/node_modules/react-dom/cjs/react-dom.development.js:454:31) Component stack in SideBarComponent (created by Connect(SideBarComponent)) in Connect(SideBarComponent) (created by ResizableLayout) in div (created by ResizableLayout) in div (created by Resizable) in Resizable (created by ResizableLayout) in div (created by ResizableLayout) in ResizableLayout (created by MainScreenComponent) in div (created by MainScreenComponent) in MainScreenComponent (created by Connect(MainScreenComponent)) in Connect(MainScreenComponent) (created by NavigatorComponent) in div (created by NavigatorComponent) in NavigatorComponent (created by Connect(NavigatorComponent)) in Connect(NavigatorComponent) (created by RootComponent) in ThemeProvider (created by RootComponent) in StyleSheetManager (created by RootComponent) in RootComponent (created by Connect(RootComponent)) in Connect(RootComponent) in ErrorBoundary in Provider