diff --git a/specifications/monitoring/MONITORING.md b/specifications/monitoring/MONITORING.md
index eeab914..264e039 100644
--- a/specifications/monitoring/MONITORING.md
+++ b/specifications/monitoring/MONITORING.md
@@ -223,12 +223,8 @@ The `screen` JSON data dictionary supports the following keys:
 
 ## Error Event `data`
 
-An event with the name `ERROR` **MUST** be sent when an error, either fatal or not, has been encountered:
-
-- A fatal error makes playback fail without the possibility to recover, either when playback is started or during
+An event with the name `ERROR` **MUST** be sent when a fatal error makes playback fail without the possibility to recover, either when playback is started or during
   playback (e.g. following a network failure).
-- A non-fatal error (warning) informs about potential issues that occur behind the scenes and might affect the playback
-  experience negatively.
 
 > [!WARNING]
 > A fatal `ERROR` at startup **MUST** always be preceded by a `START` event. If playback is restarted after a fatal
@@ -244,7 +240,6 @@ The associated event data dictionary supports the following keys:
 | `name`               | The name of the error                                                                                | String                                                 | `ERR-404`                                                                                   |
 | `position`           | The current player position, relative to the beginning of the playlist. Negative values are admitted | Time in milliseconds                                   | `16548`                                                                                     |
 | `position_timestamp` | The current player timestamp, as retrieved from the playlist. Omitted if not available               | [Unix timestamp](https://unixtime.org) in milliseconds | `1717665997932`                                                                             |
-| `severity`           | The error severity                                                                                   | `Warning`, `Fatal`                                     | `Warning`                                                                                   |
 | `url`                | The URL that was affected by the error                                                               | String                                                 | `https://...`                                                                               |
 | `vpn`                | A value indicating whether a VPN is enabled on the device                                            | Boolean                                                | `true`                                                                                      |
 
@@ -269,10 +264,9 @@ Some remarks:
 ```json
 {
   "data": {
-    "message": "Segment exceeds specified bandwidth for variant",
-    "name": "CoreMediaErrorDomain(-12318)",
+    "message": "Not found",
+    "name": "PillarboxCoreBusiness.DataError(1)",
     "position": 1024,
-    "severity": "Warning",
     "url": "https://rts-vod-amd.akamaized.net/ww/14895342/85891228-1e53-371b-997a-094380f533e2/index-f4-v1.m3u8",
     "vpn": false
   },
diff --git a/specifications/monitoring/schemas/error-schema.json b/specifications/monitoring/schemas/error-schema.json
index 69942d9..d9e5bba 100644
--- a/specifications/monitoring/schemas/error-schema.json
+++ b/specifications/monitoring/schemas/error-schema.json
@@ -35,11 +35,6 @@
           "type": "integer",
           "description": "The current player timestamp, as retrieved from the playlist, in Unix milliseconds. This field may be omitted if not available."
         },
-        "severity": {
-          "type": "string",
-          "enum": ["Warning", "Fatal"],
-          "description": "The severity of the error."
-        },
         "url": {
           "type": "string",
           "format": "uri",
@@ -50,7 +45,7 @@
           "description": "Indicates whether a VPN is enabled on the device."
         }
       },
-      "required": ["message", "name", "severity"]
+      "required": ["message", "name"]
     },
     "event_name": {
       "type": "string",