FIX: these are not spe and dont have response.parsed_body

lib/discourse_chat/provider/matrix/matrix_provider.rb

@@ -64,7 +64,7 @@ module DiscourseChat
         if !response.kind_of?(Net::HTTPSuccess)
           error_key = nil
           begin
-            responseData = response.parsed_body
+            responseData = JSON.parse(response.body)
             if responseData['errcode'] == "M_UNKNOWN_TOKEN"
               error_key = 'chat_integration.provider.matrix.errors.unknown_token'
             elsif responseData['errcode'] == "M_UNKNOWN"

lib/discourse_chat/provider/slack/slack_provider.rb

@@ -125,7 +125,7 @@ module DiscourseChat::Provider::SlackProvider
       raise ::DiscourseChat::ProviderError.new info: { request: uri, response_code: response.code, response_body: response.body }
     end
 
-    json = response.parsed_body
+    json = JSON.parse(response.body)
 
     unless json["ok"] == true
       if json.key?("error") && (json["error"] == ('channel_not_found') || json["error"] == ('is_archived'))

lib/discourse_chat/provider/slack/slack_transcript.rb

@@ -208,7 +208,7 @@ module DiscourseChat::Provider::SlackProvider
         req.set_form_data(token: SiteSetting.chat_integration_slack_access_token, limit: 200, cursor: cursor)
         response = http.request(req)
         return false unless response.kind_of? Net::HTTPSuccess
-        json = response.parsed_body
+        json = JSON.parse(response.body)
         return false unless json['ok']
         cursor = json['response_metadata']['next_cursor']
         json['members'].each do |user|
@@ -244,7 +244,7 @@ module DiscourseChat::Provider::SlackProvider
       req.set_form_data(data)
       response = http.request(req)
       return false unless response.kind_of? Net::HTTPSuccess
-      json = response.parsed_body
+      json = JSON.parse(response.body)
       return false unless json['ok']
 
       raw_messages = json['messages']

lib/discourse_chat/provider/telegram/telegram_provider.rb

@@ -44,7 +44,7 @@ module DiscourseChat
         req.body = message.to_json
         response = http.request(req)
 
-        responseData = response.parsed_body
+        responseData = JSON.parse(response.body)
 
         responseData
       end