fix(structureOwner) : fix error when invalid structure

src/structures/services/structures.service.ts

@@ -352,6 +352,9 @@ export class StructuresService {
     emailUser: string
   ): Promise<{ structure: Structure; owners: string[] }> {
     const structure = await this.findOne(idStructure);
+    if (!structure) {
+      throw new HttpException('Invalid structure id', HttpStatus.BAD_REQUEST);
+    }
     const owners = await this.userService.getStructureOwnersMails(idStructure, emailUser);
     return { structure: structure, owners: owners };
   }