Update

app/Http/Requestes/RiceShrimpWeeklyPriceUpdateRequest.php

@@ -20,7 +20,7 @@ class RiceShrimpWeeklyPriceUpdateRequest extends FormRequest
             'week' => [
                 'filled',
                 'int',
-                Rule::exists(Keywords::class, 'id')->where(function ($query) {
+                Rule::exists(Keywords::class, 'key')->where(function ($query) {
                     return $query->where('type_key', 'weeks-per-year');
                 }),
             ],

app/Models/RiceShrimpWeeklyPrice.php

@@ -17,7 +17,7 @@ class RiceShrimpWeeklyPrice extends Model
 
     public function weekObj()
     {
-        return $this->belongsTo(Keywords::class, 'week');
+        return $this->belongsTo(Keywords::class, 'week', 'key');
     }
 
     public function createdBy()