diff --git a/src/component_models/mod.rs b/src/component_models/mod.rs
index ff0fc96..11d6cbf 100644
--- a/src/component_models/mod.rs
+++ b/src/component_models/mod.rs
@@ -2,6 +2,7 @@ pub(crate) mod pager;
 
 use std::io::Cursor;
 
+use base64::{engine::general_purpose, Engine};
 use chrono_tz::Tz;
 use log::warn;
 use poise::{
@@ -51,11 +52,12 @@ impl ComponentDataModel {
     pub fn to_custom_id(&self) -> String {
         let mut buf = Vec::new();
         self.serialize(&mut Serializer::new(&mut buf)).unwrap();
-        base64::encode(buf)
+        general_purpose::STANDARD.encode(buf)
     }
 
     pub fn from_custom_id(data: &String) -> Self {
-        let buf = base64::decode(data)
+        let buf = general_purpose::STANDARD
+            .decode(data)
             .map_err(|e| format!("Could not decode `custom_id' {}: {:?}", data, e))
             .unwrap();
         let cur = Cursor::new(buf);
diff --git a/web/src/lib.rs b/web/src/lib.rs
index f0f7904..c3df67a 100644
--- a/web/src/lib.rs
+++ b/web/src/lib.rs
@@ -116,7 +116,8 @@ pub async fn initialize(
                 routes::cookies,
                 routes::privacy,
                 routes::terms,
-                routes::return_to_same_site
+                routes::return_to_same_site,
+                routes::report::report_error,
             ],
         )
         .mount(
diff --git a/web/src/routes/dashboard/export.rs b/web/src/routes/dashboard/export.rs
index 255a05e..d1f33c1 100644
--- a/web/src/routes/dashboard/export.rs
+++ b/web/src/routes/dashboard/export.rs
@@ -10,9 +10,12 @@ use serenity::{
 };
 use sqlx::{MySql, Pool};
 
-use crate::routes::dashboard::{
-    create_reminder, generate_uid, ImportBody, JsonResult, Reminder, ReminderCsv,
-    ReminderTemplateCsv, TodoCsv,
+use crate::routes::{
+    dashboard::{
+        create_reminder, generate_uid, ImportBody, Reminder, ReminderCsv, ReminderTemplateCsv,
+        TodoCsv,
+    },
+    JsonResult,
 };
 
 #[get("/api/guild/<id>/export/reminders")]
diff --git a/web/src/routes/dashboard/guild.rs b/web/src/routes/dashboard/guild.rs
index 9fc66d3..7af714e 100644
--- a/web/src/routes/dashboard/guild.rs
+++ b/web/src/routes/dashboard/guild.rs
@@ -23,9 +23,12 @@ use crate::{
         MAX_EMBED_FOOTER_LENGTH, MAX_EMBED_TITLE_LENGTH, MAX_URL_LENGTH, MAX_USERNAME_LENGTH,
         MIN_INTERVAL,
     },
-    routes::dashboard::{
-        create_database_channel, create_reminder, template_name_default, DeleteReminder,
-        DeleteReminderTemplate, JsonResult, PatchReminder, Reminder, ReminderTemplate,
+    routes::{
+        dashboard::{
+            create_database_channel, create_reminder, template_name_default, DeleteReminder,
+            DeleteReminderTemplate, PatchReminder, Reminder, ReminderTemplate,
+        },
+        JsonResult,
     },
 };
 
diff --git a/web/src/routes/dashboard/mod.rs b/web/src/routes/dashboard/mod.rs
index dda81d2..fdfd337 100644
--- a/web/src/routes/dashboard/mod.rs
+++ b/web/src/routes/dashboard/mod.rs
@@ -2,11 +2,7 @@ use std::collections::HashMap;
 
 use chrono::{naive::NaiveDateTime, Utc};
 use rand::{rngs::OsRng, seq::IteratorRandom};
-use rocket::{
-    http::CookieJar,
-    response::Redirect,
-    serde::json::{json, Value as JsonValue},
-};
+use rocket::{http::CookieJar, response::Redirect, serde::json::json};
 use rocket_dyn_templates::Template;
 use serde::{Deserialize, Deserializer, Serialize};
 use serenity::{
@@ -24,6 +20,7 @@ use crate::{
         MAX_EMBED_FIELD_VALUE_LENGTH, MAX_EMBED_FOOTER_LENGTH, MAX_EMBED_TITLE_LENGTH,
         MAX_URL_LENGTH, MAX_USERNAME_LENGTH, MIN_INTERVAL,
     },
+    routes::JsonResult,
     Database, Error,
 };
 
@@ -31,7 +28,6 @@ pub mod export;
 pub mod guild;
 pub mod user;
 
-pub type JsonResult = Result<JsonValue, JsonValue>;
 type Unset<T> = Option<T>;
 
 fn name_default() -> String {
diff --git a/web/src/routes/mod.rs b/web/src/routes/mod.rs
index 29c9352..895be9e 100644
--- a/web/src/routes/mod.rs
+++ b/web/src/routes/mod.rs
@@ -1,11 +1,14 @@
 pub mod dashboard;
 pub mod login;
+pub mod report;
 
 use std::collections::HashMap;
 
-use rocket::request::FlashMessage;
+use rocket::{request::FlashMessage, serde::json::Value as JsonValue};
 use rocket_dyn_templates::Template;
 
+pub type JsonResult = Result<JsonValue, JsonValue>;
+
 #[get("/")]
 pub async fn index(flash: Option<FlashMessage<'_>>) -> Template {
     let mut map: HashMap<&str, String> = HashMap::new();
diff --git a/web/src/routes/report.rs b/web/src/routes/report.rs
new file mode 100644
index 0000000..8bc20b3
--- /dev/null
+++ b/web/src/routes/report.rs
@@ -0,0 +1,48 @@
+use rocket::{
+    http::CookieJar,
+    serde::{
+        json::{json, Json},
+        Deserialize,
+    },
+};
+
+use crate::routes::JsonResult;
+
+#[derive(Deserialize)]
+pub struct ClientError {
+    #[serde(rename = "reporterId")]
+    reporter_id: String,
+    url: String,
+    #[serde(rename = "relativeTimestamp")]
+    relative_timestamp: i64,
+    #[serde(rename = "errorMessage")]
+    error_message: String,
+    #[serde(rename = "errorLine")]
+    error_line: u64,
+    #[serde(rename = "errorFile")]
+    error_file: String,
+    #[serde(rename = "errorType")]
+    error_type: String,
+}
+
+#[post("/report", data = "<client_error>")]
+pub async fn report_error(cookies: &CookieJar<'_>, client_error: Json<ClientError>) -> JsonResult {
+    if let Some(user_id) = cookies.get_private("userid") {
+        error!(
+            "User {} reports a client-side error.
+{}, {}:{} at {}ms
+{}: {}
+Chain: {}",
+            user_id,
+            client_error.url,
+            client_error.error_file,
+            client_error.error_line,
+            client_error.relative_timestamp,
+            client_error.error_type,
+            client_error.error_message,
+            client_error.reporter_id
+        );
+    }
+
+    Ok(json!({}))
+}
diff --git a/web/static/favicon/site.webmanifest b/web/static/favicon/site.webmanifest
index b20abb7..78fcc75 100644
--- a/web/static/favicon/site.webmanifest
+++ b/web/static/favicon/site.webmanifest
@@ -3,12 +3,12 @@
     "short_name": "",
     "icons": [
         {
-            "src": "/android-chrome-192x192.png",
+            "src": "/static/favicon/android-chrome-192x192.png",
             "sizes": "192x192",
             "type": "image/png"
         },
         {
-            "src": "/android-chrome-512x512.png",
+            "src": "/static/favicon/android-chrome-512x512.png",
             "sizes": "512x512",
             "type": "image/png"
         }
diff --git a/web/static/js/reporter.js b/web/static/js/reporter.js
new file mode 100644
index 0000000..91ba35d
--- /dev/null
+++ b/web/static/js/reporter.js
@@ -0,0 +1,16 @@
+const REPORTER_ID = crypto.randomUUID();
+
+window.addEventListener("error", async (ev) => {
+    await fetch("/report", {
+        method: "POST",
+        body: JSON.stringify({
+            reporterId: REPORTER_ID,
+            url: window.location.href,
+            relativeTimestamp: ev.timeStamp,
+            errorMessage: ev.message,
+            errorLine: ev.lineno,
+            errorFile: ev.filename,
+            errorType: ev.type,
+        }),
+    });
+});
diff --git a/web/templates/dashboard.html.tera b/web/templates/dashboard.html.tera
index b137b5f..c51b5fc 100644
--- a/web/templates/dashboard.html.tera
+++ b/web/templates/dashboard.html.tera
@@ -1,6 +1,8 @@
 <!DOCTYPE html>
 <html lang="EN">
 <head>
+    <script src="/static/js/reporter.js" type="application/javascript"></script>
+
     <meta name="description" content="The most powerful Discord Reminders Bot">
     <meta name="viewport" content="width=device-width, initial-scale=1.0">
     <meta charset="UTF-8">