Fix crash caused by custom site

core.py

@@ -71,7 +71,7 @@ def get_data_from_json(file_number, filepath, conf: config.Config):  # 从JSON
 
     # default fetch order list, from the beginning to the end
     sources = conf.sources().split(',')
-
+    if not len(conf.sources()) > 60:
         # if the input file name matches certain rules,
         # move some web service to the beginning of the list
         lo_file_number = file_number.lower()
@@ -99,7 +99,7 @@ def get_data_from_json(file_number, filepath, conf: config.Config):  # 从JSON
     json_data = {}
 
     if conf.multi_threading():
-        pool = ThreadPool(processes=11)
+        pool = ThreadPool(processes=len(conf.sources().split(',')))
 
         # Set the priority of multi-thread crawling and join the multi-thread queue
         for source in sources: