поправил миграции

database/migrations/2021_05_11_094828_create_dictionaries_table.php

@@ -19,7 +19,7 @@ class CreateDictionariesTable extends Migration
             $table->bigInteger('parent_id')->nullable();
             $table->string('name', 255);
             $table->string('type', 255);
-            $table->bigInteger('token_id')->nullable();
+            $table->bigInteger('token_id')->nullable()->unsigned();
             $table->boolean('update')->default(1);
             $table->timestamps();
 

database/migrations/2021_05_17_151448_create_dictionary_campaign_variables_table.php

@@ -21,7 +21,7 @@ class CreateDictionaryCampaignVariablesTable extends Migration
             $table->timestamps();
 
 
-            $table->unique(['dictionary_campaign_id', 'variable_id']);
+            $table->unique(['dictionary_campaign_id', 'variable_id'], 'dictionary_campaign_variables_unique_key');
 
             $table->foreign('dictionary_campaign_id')->references('id')->on('dictionary_campaigns')
                 ->cascadeOnDelete();