diff --git a/lib/get-pifu-data.js b/lib/get-pifu-data.js
index e9ad81b..f9e51da 100644
--- a/lib/get-pifu-data.js
+++ b/lib/get-pifu-data.js
@@ -29,6 +29,7 @@ exports.getMyUser = async (caller) => {
     return await getData(caller, '/me')
   } catch (error) {
     const { status, data } = error.response
+    if (status === 401 && /teacher not found/i.exec(data)) return false
     throw new HTTPError(status || 500, data || 'Unknown error occured')
   }
 }
@@ -40,6 +41,7 @@ exports.getMyStudents = async (caller, contactStudents = false) => {
     return students
   } catch (error) {
     const { status, data } = error.response
+    if (status === 403 && /teacher not found/i.exec(data)) return false
     throw new HTTPError(status || 500, data || 'Unknown error occured')
   }
 }
@@ -78,6 +80,7 @@ exports.getMyClasses = async (caller) => {
     return await getData(caller, '/me/classes')
   } catch (error) {
     const { status, data } = error.response
+    if (status === 403 && /teacher not found/i.exec(data)) return false
     throw new HTTPError(status || 500, data || 'Unknown error occured')
   }
 }