diff --git a/frontend/src/modules/agent/store/logFilter.store.ts b/frontend/src/modules/agent/store/logFilter.store.ts
index c736e60..320bc86 100644
--- a/frontend/src/modules/agent/store/logFilter.store.ts
+++ b/frontend/src/modules/agent/store/logFilter.store.ts
@@ -1,6 +1,6 @@
 import { create } from "zustand";
 
-export type LogLevel = "INFO" | "WARNING" | "ERROR" | "FATAL";
+export type LogLevel = "info" | "warning" | "error" | "fatal";
 
 interface LogFilterState {
   searchQuery: string;
@@ -22,7 +22,7 @@ interface LogFilterState {
   setOffset: (offset: number) => void;
   resetFilters: () => void;
   getFilters: () => {
-    level?: string;
+    level?: string | string[];
     service?: string;
     agent?: string;
     date_from?: string;
@@ -36,7 +36,7 @@ export const useLogFilterStore = create<LogFilterState>((set, get) => ({
   searchQuery: "",
   startDate: null,
   endDate: null,
-  selectedLogLevels: ["INFO", "WARNING", "ERROR", "FATAL"],
+  selectedLogLevels: ["info", "warning", "error", "fatal"],
   selectedService: "",
   selectedAgent: "",
   limit: 100,
@@ -63,7 +63,7 @@ export const useLogFilterStore = create<LogFilterState>((set, get) => ({
       searchQuery: "",
       startDate: null,
       endDate: null,
-      selectedLogLevels: ["INFO", "WARNING", "ERROR", "FATAL"],
+      selectedLogLevels: ["info", "warning", "error", "fatal"],
       selectedService: "",
       selectedAgent: "",
       limit: 100,
@@ -72,9 +72,17 @@ export const useLogFilterStore = create<LogFilterState>((set, get) => ({
   },
 
   getFilters: () => {
-    const { selectedLogLevels, selectedService, selectedAgent, startDate, endDate, limit, offset } = get();
+    const {
+      selectedLogLevels,
+      selectedService,
+      selectedAgent,
+      startDate,
+      endDate,
+      limit,
+      offset,
+    } = get();
     return {
-      level: selectedLogLevels.length > 0 ? selectedLogLevels.join(",") : undefined,
+      level: selectedLogLevels.length > 0 ? selectedLogLevels : undefined,
       service: selectedService || undefined,
       agent: selectedAgent || undefined,
       date_from: startDate ? startDate.toISOString() : undefined,
diff --git a/frontend/src/modules/agent/types/agent.types.ts b/frontend/src/modules/agent/types/agent.types.ts
index adec31b..da132ab 100644
--- a/frontend/src/modules/agent/types/agent.types.ts
+++ b/frontend/src/modules/agent/types/agent.types.ts
@@ -62,7 +62,7 @@ export interface InsertLogsRequest {
 }
 
 export interface LogFilters {
-  level?: string;
+  level?: string | string[];
   service?: string;
   agent?: string;
   date_from?: string;
diff --git a/frontend/src/modules/agent/ui/LogFilters.tsx b/frontend/src/modules/agent/ui/LogFilters.tsx
index 36ba5fb..03e47fc 100644
--- a/frontend/src/modules/agent/ui/LogFilters.tsx
+++ b/frontend/src/modules/agent/ui/LogFilters.tsx
@@ -13,22 +13,22 @@ const logLevelColors: Record<
   LogLevel,
   { bg: string; text: string; border: string }
 > = {
-  INFO: {
+  info: {
     bg: "var(--info-bg)",
     text: "var(--info-text)",
     border: "var(--info-border)",
   },
-  WARNING: {
+  warning: {
     bg: "var(--warning-bg)",
     text: "var(--warning-text)",
     border: "var(--warning-border)",
   },
-  ERROR: {
+  error: {
     bg: "var(--error-bg)",
     text: "var(--error-text)",
     border: "var(--error-border)",
   },
-  FATAL: {
+  fatal: {
     bg: "var(--fatal-bg)",
     text: "var(--fatal-text)",
     border: "var(--fatal-border)",
@@ -272,7 +272,7 @@ export const LogFilters: React.FC<LogFiltersProps> = ({
             </span>
           </div>
           <div className="flex flex-wrap gap-2">
-            {(["INFO", "WARNING", "ERROR", "FATAL"] as LogLevel[]).map(
+            {(["info", "warning", "error", "fatal"] as LogLevel[]).map(
               (level) => {
                 const isSelected = selectedLogLevels.includes(level);
                 const colors = logLevelColors[level];
@@ -291,7 +291,7 @@ export const LogFilters: React.FC<LogFiltersProps> = ({
                     {isSelected && (
                       <FiCheck size={10} className="inline mr-1" />
                     )}
-                    {level}
+                    {level.toUpperCase()}
                   </button>
                 );
               },
diff --git a/frontend/src/pages/logs.page.tsx b/frontend/src/pages/logs.page.tsx
index 0ec9256..bd26c3e 100644
--- a/frontend/src/pages/logs.page.tsx
+++ b/frontend/src/pages/logs.page.tsx
@@ -15,32 +15,32 @@ import {
 } from "react-icons/fi";
 
 const logLevelIcons: Record<string, React.ReactNode> = {
-  INFO: <FiInfo size={14} />,
-  WARNING: <FiAlertTriangle size={14} />,
-  ERROR: <FiAlertCircle size={14} />,
-  FATAL: <FiXOctagon size={14} />,
+  info: <FiInfo size={14} />,
+  warning: <FiAlertTriangle size={14} />,
+  error: <FiAlertCircle size={14} />,
+  fatal: <FiXOctagon size={14} />,
 };
 
 const logLevelColors: Record<
   string,
   { bg: string; text: string; border: string }
 > = {
-  INFO: {
+  info: {
     bg: "var(--info-bg)",
     text: "var(--info-text)",
     border: "var(--info-border)",
   },
-  WARNING: {
+  warning: {
     bg: "var(--warning-bg)",
     text: "var(--warning-text)",
     border: "var(--warning-border)",
   },
-  ERROR: {
+  error: {
     bg: "var(--error-bg)",
     text: "var(--error-text)",
     border: "var(--error-border)",
   },
-  FATAL: {
+  fatal: {
     bg: "var(--fatal-bg)",
     text: "var(--fatal-text)",
     border: "var(--fatal-border)",
@@ -306,9 +306,9 @@ export const LogsPage: React.FC = () => {
                   </thead>
                   <tbody>
                     {logs.map((log, index) => {
-                      const level = log.level || "INFO";
+                      const level = log.level?.toLowerCase() || "info";
                       const colors =
-                        logLevelColors[level] || logLevelColors.INFO;
+                        logLevelColors[level] || logLevelColors.info;
                       return (
                         <tr
                           key={index}
diff --git a/frontend/src/shared/api/axios.instance.ts b/frontend/src/shared/api/axios.instance.ts
index afd5aa1..e5381c3 100644
--- a/frontend/src/shared/api/axios.instance.ts
+++ b/frontend/src/shared/api/axios.instance.ts
@@ -16,7 +16,7 @@ class ApiClient {
 
   constructor() {
     this.axiosInstance = axios.create({
-      baseURL: "http://10.97.147.99:8080/api/v1",
+      baseURL: "http://213.165.213.170:8080/api/v1",
       timeout: 10000,
       headers: {
         "Content-Type": "application/json",
@@ -24,6 +24,33 @@ class ApiClient {
       validateStatus: (status) => {
         return status >= 200 && status < 400;
       },
+      // Добавляем кастомный сериализатор параметров
+      paramsSerializer: {
+        serialize: (params) => {
+          const parts: string[] = [];
+
+          Object.entries(params).forEach(([key, value]) => {
+            if (value === undefined || value === null) return;
+
+            if (Array.isArray(value)) {
+              // Преобразуем массив в множественные параметры: level=info&level=warning
+              value.forEach((item) => {
+                if (item !== undefined && item !== null) {
+                  parts.push(
+                    `${encodeURIComponent(key)}=${encodeURIComponent(item)}`,
+                  );
+                }
+              });
+            } else {
+              parts.push(
+                `${encodeURIComponent(key)}=${encodeURIComponent(String(value))}`,
+              );
+            }
+          });
+
+          return parts.join("&");
+        },
+      },
     });
 
     this.setupInterceptors();