"Unexpected character" error crashing Transmuter -

[astupidmoose]

I cannot reach transmuter for almost 6 months or so. When trying to navigate to transmuter in the browser, I get the following errors:

JsonReaderException: Unexpected character encountered while parsing value: E. Path '', line 0, position 0.
Newtonsoft.Json.JsonTextReader.ParseValue()
Newtonsoft.Json.JsonReader.ReadForType(JsonContract contract, bool hasConverter)
Newtonsoft.Json.Serialization.JsonSerializerInternalReader.Deserialize(JsonReader reader, Type objectType, bool checkAdditionalContent)
Newtonsoft.Json.JsonSerializer.DeserializeInternal(JsonReader reader, Type objectType)
Newtonsoft.Json.JsonConvert.DeserializeObject(string value, Type type, JsonSerializerSettings settings)
Newtonsoft.Json.JsonConvert.DeserializeObject(string value, JsonSerializerSettings settings)
BtcTransmuter.Services.SettingsManager+<>c__DisplayClass3_0+<b__0>d.MoveNext() in SettingsManager.cs
Microsoft.Extensions.Caching.Memory.CacheExtensions.GetOrCreateAsync(IMemoryCache cache, object key, Func<ICacheEntry, Task> factory)
BtcTransmuter.Services.SettingsManager.GetSettings(string key) in SettingsManager.cs
AspNetCore.Views_Shared__Layout.b__13_0() in _Layout.cshtml
Microsoft.AspNetCore.Razor.Runtime.TagHelpers.TagHelperExecutionContext.SetOutputContentAsync()
AspNetCore.Views_Shared__Layout.ExecuteAsync()
Microsoft.AspNetCore.Mvc.Razor.RazorView.RenderPageCoreAsync(IRazorPage page, ViewContext context)
Microsoft.AspNetCore.Mvc.Razor.RazorView.RenderPageAsync(IRazorPage page, ViewContext context, bool invokeViewStarts)
Microsoft.AspNetCore.Mvc.Razor.RazorView.RenderLayoutAsync(ViewContext context, ViewBufferTextWriter bodyWriter)
Microsoft.AspNetCore.Mvc.Razor.RazorView.RenderAsync(ViewContext context)
Microsoft.AspNetCore.Mvc.ViewFeatures.ViewExecutor.ExecuteAsync(ViewContext viewContext, string contentType, Nullable statusCode)
Microsoft.AspNetCore.Mvc.ViewFeatures.ViewExecutor.ExecuteAsync(ViewContext viewContext, string contentType, Nullable statusCode)
Microsoft.AspNetCore.Mvc.ViewFeatures.ViewExecutor.ExecuteAsync(ActionContext actionContext, IView view, ViewDataDictionary viewData, ITempDataDictionary tempData, string contentType, Nullable statusCode)
Microsoft.AspNetCore.Mvc.ViewFeatures.ViewResultExecutor.ExecuteAsync(ActionContext context, ViewResult result)
Microsoft.AspNetCore.Mvc.ViewResult.ExecuteResultAsync(ActionContext context)
Microsoft.AspNetCore.Mvc.Infrastructure.ResourceInvoker.g__Awaited|29_0<TFilter, TFilterAsync>(ResourceInvoker invoker, Task lastTask, State next, Scope scope, object state, bool isCompleted)
Microsoft.AspNetCore.Mvc.Infrastructure.ResourceInvoker.Rethrow(ResultExecutedContextSealed context)
Microsoft.AspNetCore.Mvc.Infrastructure.ResourceInvoker.ResultNext<TFilter, TFilterAsync>(ref State next, ref Scope scope, ref object state, ref bool isCompleted)
Microsoft.AspNetCore.Mvc.Infrastructure.ResourceInvoker.g__Awaited|27_0(ResourceInvoker invoker, Task lastTask, State next, Scope scope, object state, bool isCompleted)
Microsoft.AspNetCore.Mvc.Infrastructure.ResourceInvoker.g__Awaited|24_0(ResourceInvoker invoker, Task lastTask, State next, Scope scope, object state, bool isCompleted)
Microsoft.AspNetCore.Mvc.Infrastructure.ResourceInvoker.Rethrow(ResourceExecutedContextSealed context)
Microsoft.AspNetCore.Mvc.Infrastructure.ResourceInvoker.Next(ref State next, ref Scope scope, ref object state, ref bool isCompleted)
Microsoft.AspNetCore.Mvc.Infrastructure.ResourceInvoker.g__Awaited|19_0(ResourceInvoker invoker, Task lastTask, State next, Scope scope, object state, bool isCompleted)
Microsoft.AspNetCore.Mvc.Infrastructure.ResourceInvoker.g__Awaited|17_0(ResourceInvoker invoker, Task task, IDisposable scope)
Microsoft.AspNetCore.Builder.RouterMiddleware.Invoke(HttpContext httpContext)
Microsoft.AspNetCore.Authentication.AuthenticationMiddleware.Invoke(HttpContext context)
Microsoft.AspNetCore.Builder.Extensions.UsePathBaseMiddleware.Invoke(HttpContext context)
Microsoft.AspNetCore.Diagnostics.EntityFrameworkCore.MigrationsEndPointMiddleware.Invoke(HttpContext context)
Microsoft.AspNetCore.Diagnostics.EntityFrameworkCore.DatabaseErrorPageMiddleware.Invoke(HttpContext httpContext)
Microsoft.AspNetCore.Diagnostics.EntityFrameworkCore.DatabaseErrorPageMiddleware.Invoke(HttpContext httpContext)
Microsoft.AspNetCore.Diagnostics.DeveloperExceptionPageMiddleware.Invoke(HttpContext context)`

When looking in the docker logs, it also seems that this error is popping up regularly when trying to execute things.

fail: BtcTransmuter.Services.TriggerDispatcher[0] Trigger Handler BtcTransmuter.Extension.Timer.Triggers.Timer.TimerTriggerHandler errored out on Unexpected character encountered while parsing value: E. Path '', line 0, position 0.

fail: BtcTransmuter.Services.TriggerDispatcher[0] Trigger Handler BtcTransmuter.Extension.Timer.Triggers.Timer.TimerTriggerHandler errored out on Unexpected character encountered while parsing value: E. Path '', line 0, position 0.

fail: BtcTransmuter.Services.TriggerDispatcher[0] Trigger Handler BtcTransmuter.Extension.Timer.Triggers.Timer.TimerTriggerHandler errored out on Unexpected character encountered while parsing value: E. Path '', line 0, position 0.

fail: BtcTransmuter.Services.TriggerDispatcher[0] Trigger Handler BtcTransmuter.Extension.Timer.Triggers.Timer.TimerTriggerHandler errored out on Unexpected character encountered while parsing value: E. Path '', line 0, position 0.