Add check to avoid crashes when a claim element's value is nil

internal/handlers/consent.go

@@ -450,6 +450,12 @@ func (h *ConsentHandler) mapRequestedClaims(
 	for _, claimElement := range []*models.ClaimElement{claims.GetUserInfo(), claims.GetIDToken()} {
 		if claimElement != nil {
 			for k, v := range *claimElement {
+				if v == nil {
+					h.logger.Warn("claim element is nil", "key", k)
+
+					continue
+				}
+
 				if _, ok := supportedClaims[k]; !ok {
 					h.logger.Warn("ignoring unsupported claim", "claim", k)