diff --git a/apps/client/app/(afterLogin)/my-study/my-assignment/_components/AssignmentContent/AssignmentOverviewBox/AssignmentBoxInfo.tsx b/apps/client/app/(afterLogin)/my-study/my-assignment/_components/AssignmentContent/AssignmentOverviewBox/AssignmentBoxInfo.tsx
index 9bf85c9b..451b4f6d 100644
--- a/apps/client/app/(afterLogin)/my-study/my-assignment/_components/AssignmentContent/AssignmentOverviewBox/AssignmentBoxInfo.tsx
+++ b/apps/client/app/(afterLogin)/my-study/my-assignment/_components/AssignmentContent/AssignmentOverviewBox/AssignmentBoxInfo.tsx
@@ -51,7 +51,7 @@ export const AssignmentBoxInfo = async ({
 };
 
 const failMapping: Record<Assignment["submissionFailureType"], string> = {
-  LOCATION_UNIDENTIFIABLE: "위치 정보 확인 불가",
+  LOCATION_UNIDENTIFIABLE: "위치 확인 불가",
   WORD_COUNT_INSUFFICIENT: "글자수 부족",
   NOT_SUBMITTED: "제출 안함",
   NONE: "없음",
diff --git a/apps/client/app/(afterLogin)/my-study/my-assignment/_components/AssignmentContent/AssignmentOverviewBox/FailurePopover.tsx b/apps/client/app/(afterLogin)/my-study/my-assignment/_components/AssignmentContent/AssignmentOverviewBox/FailurePopover.tsx
index 66ebd636..c568278b 100644
--- a/apps/client/app/(afterLogin)/my-study/my-assignment/_components/AssignmentContent/AssignmentOverviewBox/FailurePopover.tsx
+++ b/apps/client/app/(afterLogin)/my-study/my-assignment/_components/AssignmentContent/AssignmentOverviewBox/FailurePopover.tsx
@@ -25,6 +25,8 @@ export const FailurePopover = ({
             "Q. 글자수가 부족하다고 나와요."}
           {submissionFailureType === "LOCATION_UNIDENTIFIABLE" &&
             'Q. "위치 확인 불가" 라고 나와요.'}
+          {submissionFailureType === "UNKNOWN" &&
+            'Q. "알 수 없음" 라고 나와요.'}
         </Text>
         <Text as="div" color="outline" typo="body3">
           {submissionFailureType === "LOCATION_UNIDENTIFIABLE" && (
@@ -40,7 +42,7 @@ export const FailurePopover = ({
               <br />
               <br />
               커밋 후 원격 저장소에 push까지 완료했는지 제대로 제출한 후에도
-              계속 "경로 확인 불가"라고 나온다면,GDSC Hongik 카카오톡 채널로
+              계속 "위치 확인 불가"라고 나온다면,GDSC Hongik 카카오톡 채널로
               문의해주세요.
             </>
           )}
@@ -53,6 +55,15 @@ export const FailurePopover = ({
               GDSC Hongik 카카오톡 채널로 문의해주세요.
             </p>
           )}
+          {submissionFailureType === "UNKNOWN" && (
+            <p>
+              제출 실패의 이유를 알 수 없는 경우에요. <br />
+              <br />
+              제대로 제출한 후에도 계속 '알 수 없음' 이 뜬다면,
+              <br />
+              GDSC Hongik 카카오톡 채널로 문의해주세요.
+            </p>
+          )}
         </Text>
       </Flex>
     </Popover>
diff --git a/apps/client/app/(afterLogin)/my-study/my-assignment/_components/AssignmentHistory/AssignmentHistoryItem.tsx b/apps/client/app/(afterLogin)/my-study/my-assignment/_components/AssignmentHistory/AssignmentHistoryItem.tsx
index f206412f..07563ec4 100644
--- a/apps/client/app/(afterLogin)/my-study/my-assignment/_components/AssignmentHistory/AssignmentHistoryItem.tsx
+++ b/apps/client/app/(afterLogin)/my-study/my-assignment/_components/AssignmentHistory/AssignmentHistoryItem.tsx
@@ -71,7 +71,7 @@ export const AssignmentHistoryItem = ({
           <Tag color={tagColor} variant="solid2">
             {tagText}
           </Tag>
-          <Text color="error">
+          <Text color="red.500">
             {assignmentSubmissionStatus === "FAILURE" &&
               failMapping[submissionFailureType ?? "NONE"]}
           </Text>
@@ -162,4 +162,5 @@ const failMapping: Record<Assignment["submissionFailureType"], string> = {
   WORD_COUNT_INSUFFICIENT: "글자수부족",
   NOT_SUBMITTED: "미제출",
   NONE: "",
+  UNKNOWN: "알수없음",
 };
diff --git a/apps/client/types/entities/common/assignment.ts b/apps/client/types/entities/common/assignment.ts
index f6f91ea8..8558c02a 100644
--- a/apps/client/types/entities/common/assignment.ts
+++ b/apps/client/types/entities/common/assignment.ts
@@ -4,4 +4,5 @@ export type AssignmentSubmissionFailureType =
   | "NONE"
   | "NOT_SUBMITTED"
   | "WORD_COUNT_INSUFFICIENT"
-  | "LOCATION_UNIDENTIFIABLE";
+  | "LOCATION_UNIDENTIFIABLE"
+  | "UNKNOWN";