Prevented #2848 from erroring out causing further issues.

src/Ombi.Core/Rule/Rules/Search/AvailabilityRuleHelper.cs

@@ -2,6 +2,7 @@
 using System.Linq;
 using System.Threading.Tasks;
 using Microsoft.EntityFrameworkCore;
+using Microsoft.Extensions.Logging;
 using Ombi.Core.Models.Search;
 using Ombi.Store.Entities;
 using Ombi.Store.Repository.Requests;
@@ -33,9 +34,12 @@ namespace Ombi.Core.Rule.Rules.Search
         }
 
         public static async Task SingleEpisodeCheck(bool useImdb, IQueryable<PlexEpisode> allEpisodes, EpisodeRequests episode,
-            SeasonRequests season, PlexServerContent item, bool useTheMovieDb, bool useTvDb)
+            SeasonRequests season, PlexServerContent item, bool useTheMovieDb, bool useTvDb, ILogger log)
         {
             PlexEpisode epExists = null;
+            try
+            {
+
                 if (useImdb)
                 {
                     epExists = await allEpisodes.FirstOrDefaultAsync(x =>
@@ -56,6 +60,11 @@ namespace Ombi.Core.Rule.Rules.Search
                         x.EpisodeNumber == episode.EpisodeNumber && x.SeasonNumber == season.SeasonNumber &&
                         x.Series.TvDbId == item.TvDbId);
                 }
+            }
+            catch (Exception e)
+            {
+                log.LogError(e, "Exception thrown when attempting to check if something is available");
+            }
 
             if (epExists != null)
             {