Forgot to update DTO to send it to the Frontend.

API/DTOs/VolumeDto.cs

@@ -7,5 +7,6 @@ namespace API.DTOs
         public int Number { get; set; }
         public string Name { get; set; }
         public byte[] CoverImage { get; set; }
+        public int Pages { get; set; }
     }
 }

API/Interfaces/ICacheService.cs

@@ -23,6 +23,7 @@ namespace API.Interfaces
         /// Clears cache directory of all volumes that belong to a given library.
         /// </summary>
         /// <param name="libraryId"></param>
+        /// <param name="volumeIds">Volumes that belong to that library. Assume the library might have been deleted before this invocation.</param>
         void CleanupLibrary(int libraryId, int[] volumeIds);
         
 

API/Services/CacheService.cs

@@ -26,8 +26,18 @@ namespace API.Services
             _numericComparer = new NumericComparer();
         }
 
+        private bool CacheDirectoryIsAccessible()
+        {
+            var di = new DirectoryInfo(_cacheDirectory);
+            return di.Exists;
+        }
+
         public async Task<Volume> Ensure(int volumeId)
         {
+            if (!CacheDirectoryIsAccessible())
+            {
+                return null;
+            }
             Volume volume = await _seriesRepository.GetVolumeAsync(volumeId);
             foreach (var file in volume.Files)
             {
@@ -44,6 +54,12 @@ namespace API.Services
         {
             _logger.LogInformation("Performing cleanup of Cache directory");
             
+            if (!CacheDirectoryIsAccessible())
+            {
+                _logger.LogError($"Cache directory {_cacheDirectory} is not accessible or does not exist.");
+                return;
+            }
+            
             DirectoryInfo di = new DirectoryInfo(_cacheDirectory);
 
             try