diff --git a/shared/js/permission/PermissionManager.ts b/shared/js/permission/PermissionManager.ts
index 2942df71..657fa282 100644
--- a/shared/js/permission/PermissionManager.ts
+++ b/shared/js/permission/PermissionManager.ts
@@ -1,6 +1,6 @@
 import * as log from "tc-shared/log";
 import {LogCategory, LogType} from "tc-shared/log";
-import PermissionType from "tc-shared/permission/PermissionType";
+import {PermissionType} from "tc-shared/permission/PermissionType";
 import {LaterPromise} from "tc-shared/utils/LaterPromise";
 import {ServerCommand} from "tc-shared/connection/ConnectionBase";
 import {CommandResult, ErrorID} from "tc-shared/connection/ServerConnectionDeclaration";
diff --git a/shared/js/ui/channel.ts b/shared/js/ui/channel.ts
index 7dc818e4..a4ebd318 100644
--- a/shared/js/ui/channel.ts
+++ b/shared/js/ui/channel.ts
@@ -2,7 +2,7 @@ import {ChannelTree} from "tc-shared/ui/view";
 import {ClientEntry} from "tc-shared/ui/client";
 import * as log from "tc-shared/log";
 import {LogCategory, LogType} from "tc-shared/log";
-import PermissionType from "tc-shared/permission/PermissionType";
+import {PermissionType} from "tc-shared/permission/PermissionType";
 import {settings, Settings} from "tc-shared/settings";
 import * as contextmenu from "tc-shared/ui/elements/ContextMenu";
 import {Sound} from "tc-shared/sound/Sounds";
diff --git a/shared/js/ui/elements/Slider.ts b/shared/js/ui/elements/Slider.ts
index a2d4a347..669f2cf1 100644
--- a/shared/js/ui/elements/Slider.ts
+++ b/shared/js/ui/elements/Slider.ts
@@ -73,7 +73,7 @@ export function sliderfy(slider: JQuery, options?: SliderOptions) : Slider {
         const parent_offset = slider.offset();
         const min = parent_offset.left;
         const max = parent_offset.left + slider.width();
-        const current = event instanceof MouseEvent ? event.pageX : event.touches[event.touches.length - 1].clientX;
+        const current = 'touches' in event ? event.touches[event.touches.length - 1].clientX : event.pageX;
 
         const range = options.max_value - options.min_value;
         const offset = Math.round(((current - min) * (range / options.step)) / (max - min)) * options.step;
diff --git a/shared/js/ui/frames/MenuBar.ts b/shared/js/ui/frames/MenuBar.ts
index 24f4b976..93d3e4d9 100644
--- a/shared/js/ui/frames/MenuBar.ts
+++ b/shared/js/ui/frames/MenuBar.ts
@@ -14,7 +14,7 @@ import {spawnConnectModal} from "tc-shared/ui/modal/ModalConnect";
 import {spawnPermissionEdit} from "tc-shared/ui/modal/permission/ModalPermissionEdit";
 import {createErrorModal, createInfoModal, createInputModal} from "tc-shared/ui/elements/Modal";
 import {CommandResult} from "tc-shared/connection/ServerConnectionDeclaration";
-import PermissionType from "tc-shared/permission/PermissionType";
+import {PermissionType} from "tc-shared/permission/PermissionType";
 import {openBanList} from "tc-shared/ui/modal/ModalBanList";
 import {spawnQueryManage} from "tc-shared/ui/modal/ModalQueryManage";
 import {spawnQueryCreate} from "tc-shared/ui/modal/ModalQuery";
diff --git a/shared/js/ui/frames/side/conversations.ts b/shared/js/ui/frames/side/conversations.ts
index 18ec6a0c..b2a95fda 100644
--- a/shared/js/ui/frames/side/conversations.ts
+++ b/shared/js/ui/frames/side/conversations.ts
@@ -3,7 +3,7 @@ import {format} from "tc-shared/ui/frames/side/chat_helper";
 import {bbcode_chat, formatMessage} from "tc-shared/ui/frames/chat";
 import {CommandResult, ErrorID} from "tc-shared/connection/ServerConnectionDeclaration";
 import {LogCategory} from "tc-shared/log";
-import PermissionType from "tc-shared/permission/PermissionType";
+import {PermissionType} from "tc-shared/permission/PermissionType";
 import {ChatBox} from "tc-shared/ui/frames/side/chat_box";
 import {Frame, FrameContent} from "tc-shared/ui/frames/chat_frame";
 import {createErrorModal} from "tc-shared/ui/elements/Modal";
diff --git a/shared/js/ui/modal/ModalSettings.ts b/shared/js/ui/modal/ModalSettings.ts
index 5ba660f8..3ed40727 100644
--- a/shared/js/ui/modal/ModalSettings.ts
+++ b/shared/js/ui/modal/ModalSettings.ts
@@ -1779,7 +1779,7 @@ export namespace modal_settings {
                     console.debug(tr("Changed default microphone device"));
                     event_registry.fire_async("set-device-result", { status: "success", device_id: event.device_id });
                 }).catch((error) => {
-                    log.warn(LogCategory.AUDIO, tr("Failed to change microphone to device %s: %o"), device ? device.unique_id : "none", error)
+                    log.warn(LogCategory.AUDIO, tr("Failed to change microphone to device %s: %o"), device ? device.unique_id : "none", error);
                     event_registry.fire_async("set-device-result", { status: "success", device_id: event.device_id });
                 });
             });
@@ -1956,7 +1956,7 @@ export namespace modal_settings {
                         const tags = volume_bar_tags[device.device_id];
                         if(!tags) continue;
 
-                        let level = typeof device.level === "number" ? device.level : 100;
+                        let level = typeof device.level === "number" ? device.level : 0;
                         if(level > 100) level = 100;
                         else if(level < 0) level = 0;
                         tags.error.attr('title', device.error || null).text(device.error || null);
diff --git a/shared/js/ui/modal/permission/ModalPermissionEdit.ts b/shared/js/ui/modal/permission/ModalPermissionEdit.ts
index eff390b8..538f28de 100644
--- a/shared/js/ui/modal/permission/ModalPermissionEdit.ts
+++ b/shared/js/ui/modal/permission/ModalPermissionEdit.ts
@@ -1,7 +1,7 @@
 import {
     PermissionManager,
 } from "tc-shared/permission/PermissionManager";
-import PermissionType from "tc-shared/permission/PermissionType";
+import {PermissionType} from "tc-shared/permission/PermissionType";
 import {ConnectionHandler} from "tc-shared/ConnectionHandler";
 import {createErrorModal, createInfoModal, createInputModal, createModal, Modal} from "tc-shared/ui/elements/Modal";
 import {HTMLPermissionEditor} from "tc-shared/ui/modal/permission/HTMLPermissionEditor";
diff --git a/shared/js/ui/view.ts b/shared/js/ui/view.ts
index 1e1c0f32..d52131a1 100644
--- a/shared/js/ui/view.ts
+++ b/shared/js/ui/view.ts
@@ -1,7 +1,7 @@
 import * as contextmenu from "tc-shared/ui/elements/ContextMenu";
 import * as log from "tc-shared/log";
 import {Settings, settings} from "tc-shared/settings";
-import PermissionType from "tc-shared/permission/PermissionType";
+import {PermissionType} from "tc-shared/permission/PermissionType";
 import {LogCategory} from "tc-shared/log";
 import {KeyCode, SpecialKey} from "tc-shared/PPTListener";
 import {createInputModal} from "tc-shared/ui/elements/Modal";