diff --git a/libs/event-emitter/src/issue-enhancers/tag-styled-enhancer.ts b/libs/event-emitter/src/issue-enhancers/tag-styled-enhancer.ts
index 9b63b76..dbb8920 100644
--- a/libs/event-emitter/src/issue-enhancers/tag-styled-enhancer.ts
+++ b/libs/event-emitter/src/issue-enhancers/tag-styled-enhancer.ts
@@ -30,9 +30,10 @@ export namespace TagStyledEnhancerNs {
   export function CreateTagStyledEnhancerForConfig(
     cfg: ConfigWithTagsStyles,
   ): TagStyledEnhancer | null {
-    if (!cfg.tags) return null;
+    if (!cfg || !cfg.tags) return null;
     return new TagStyledEnhancer(
       (issue: RedmineTypes.ExtendedIssue) => {
+        if (!issue) return [];
         if (
           typeof issue[cfg.tags.tagsKeyName] === 'object' &&
           issue[cfg.tags.tagsKeyName].length > 0
@@ -64,6 +65,7 @@ export class TagStyledEnhancer implements IssueEnhancerInterface {
   async enhance(
     issue: RedmineTypes.ExtendedIssue,
   ): Promise<RedmineTypes.ExtendedIssue> {
+    if (!issue) return issue;
     const tags = this.tagsGetter(issue);
     this.logger.debug(`Found tags for issue_id = ${issue.id} - ${tags}`);
     const styles = [] as TagStyledEnhancerNs.StyledTag[];
diff --git a/src/notifications/adapters/status-change.adapter.service.ts b/src/notifications/adapters/status-change.adapter.service.ts
index 9e9ecaa..b70271b 100644
--- a/src/notifications/adapters/status-change.adapter.service.ts
+++ b/src/notifications/adapters/status-change.adapter.service.ts
@@ -1,4 +1,4 @@
-import { Injectable } from '@nestjs/common';
+import { Injectable, Logger } from '@nestjs/common';
 import { ConfigService } from '@nestjs/config';
 import TelegramBot from 'node-telegram-bot-api';
 import { Change } from 'src/models/change.model';
@@ -18,6 +18,7 @@ namespace StatusChangeAdapter {
 
 @Injectable()
 export class StatusChangeAdapterService {
+  private logger = new Logger(StatusChangeAdapterService.name);
   private periodValidityNotification: number;
 
   constructor(
@@ -54,6 +55,7 @@ export class StatusChangeAdapterService {
       item.options = { parse_mode: 'HTML' };
       return item;
     });
+    this.logger.debug(`Change messages for sending to telegram - ${JSON.stringify(messages)}`);
     for (let i = 0; i < messages.length; i++) {
       const message = messages[i];
       await this.telegramBotService.sendMessageByRedmineId(
@@ -74,6 +76,12 @@ export class StatusChangeAdapterService {
         nowTimestamp - change.created_on_timestamp >
         this.periodValidityNotification
       ) {
+        this.logger.debug(
+          `Skipping sending due to the prescription ` +
+            `of the origin of the event - ` +
+            `issue_id = ${change.issue_id}, ` +
+            `messages = ${change.messages.map((m) => m.notification_message).filter((m) => !!m)}`
+        );
         continue;
       }
       for (let j = 0; j < change.messages.length; j++) {