diff --git a/.idea/compiler.xml b/.idea/compiler.xml
index 6e52cd12..b86273d9 100644
--- a/.idea/compiler.xml
+++ b/.idea/compiler.xml
@@ -1,6 +1,6 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <project version="4">
   <component name="CompilerConfiguration">
-    <bytecodeTargetLevel target="24" />
+    <bytecodeTargetLevel target="21" />
   </component>
 </project>
\ No newline at end of file
diff --git a/.idea/misc.xml b/.idea/misc.xml
index 33be0745..ed03962e 100644
--- a/.idea/misc.xml
+++ b/.idea/misc.xml
@@ -1,6 +1,7 @@
+<?xml version="1.0" encoding="UTF-8"?>
 <project version="4">
   <component name="ExternalStorageConfigurationManager" enabled="true" />
-  <component name="ProjectRootManager" version="2" languageLevel="JDK_24" default="true" project-jdk-name="temurin-24" project-jdk-type="JavaSDK">
+  <component name="ProjectRootManager" version="2" languageLevel="JDK_21" project-jdk-name="temurin-24" project-jdk-type="JavaSDK">
     <output url="file://$PROJECT_DIR$/build/classes" />
   </component>
   <component name="ProjectType">
diff --git a/build-logic/build.gradle.kts b/build-logic/build.gradle.kts
index 6da2ffbf..86813b31 100644
--- a/build-logic/build.gradle.kts
+++ b/build-logic/build.gradle.kts
@@ -3,8 +3,8 @@ plugins {
 }
 
 java {
-    sourceCompatibility = JavaVersion.VERSION_24
-    targetCompatibility = JavaVersion.VERSION_24
+    sourceCompatibility = JavaVersion.VERSION_21
+    targetCompatibility = JavaVersion.VERSION_21
 }
 
 gradlePlugin {
diff --git a/core/core-resource/src/commonMain/kotlin/com/velord/core/resource/StringResource.kt b/core/core-resource/src/commonMain/kotlin/com/velord/core/resource/StringResource.kt
index 01304f05..d316e837 100644
--- a/core/core-resource/src/commonMain/kotlin/com/velord/core/resource/StringResource.kt
+++ b/core/core-resource/src/commonMain/kotlin/com/velord/core/resource/StringResource.kt
@@ -15,7 +15,8 @@ fun stringResource(
     resource: AppStringResource,
     vararg formatArgs: Any,
 ): String {
-    val localization = localizationForStringResource() ?: error("LocalizationState is not provided")
+    // ?: in case of Preview
+    val localization = localizationForStringResource() ?: return resource.key
 
     return getString(
         localization = localization,
@@ -30,7 +31,8 @@ fun stringResource(
     language: LanguageCode,
     vararg formatArgs: Any,
 ): String {
-    val localization = localizationForStringResource() ?: error("LocalizationState is not provided")
+    // ?: in case of Preview
+    val localization = localizationForStringResource() ?: return resource.key
 
     return getString(
         localization = localization,
diff --git a/gradle/libs.versions.toml b/gradle/libs.versions.toml
index 3ad8ec79..88902ae6 100644
--- a/gradle/libs.versions.toml
+++ b/gradle/libs.versions.toml
@@ -6,7 +6,7 @@ targetApi = "37"
 buildTools = "36.0.0"
 buildkonfig = "0.22.0"
 gradle = "9.3.1"
-jvmTarget = "24"
+jvmTarget = "21"
 jetifier = "1.0.0-beta10"
 # DI
 dagger = "2.60.1"