fetching db errors, devices on map, fix upd page

static/styles/main.css

@@ -18,6 +18,7 @@ body {
   margin: 0;
   width: 100%;
   min-height: 100%;
+  overflow-y: hidden;
 }
 
 header {
@@ -751,7 +752,21 @@ tr:nth-child(even) {
   transition: 0.1s;
 }
 
-.form button:hover {
+.erorr-container button {
+  font-weight: 500;
+  font-size: 16px;
+  margin-top: 15px;
+  width: auto;
+  background-color: #8086f9;
+  color: white;
+  padding: 10px;
+  border: 1px solid rgba(0, 0, 0, 0.1);
+  border-radius: 5px;
+  transition: 0.1s;
+}
+
+.form button:hover,
+.erorr-container button:hover {
   cursor: pointer;
   opacity: 80%;
 }
@@ -1374,6 +1389,7 @@ video {
   transition: 1s;
   position: relative;
   float: left;
+  z-index: 10;
 }
 
 .signals-list.hide {
@@ -1418,8 +1434,10 @@ video {
   width: 100%;
   list-style: none;
   padding: 0;
-  overflow-y: scroll;
+  overflow-y: auto;
   white-space: nowrap;
+  height: 150px;
+  padding-bottom: 50px;
 }
 
 .signals-list li {
@@ -1497,13 +1515,20 @@ video {
 }
 
 .map {
-  background-color: #ff443a2f;
+  /* background-color: #ff443a2f; */
   width: 100%;
   height: 100%;
   display: block;
   /* float: right; */
 }
 
+#map {
+  width: 100%;
+  height: 100%;
+  position: absolute;
+  border-radius: 29px;
+}
+
 .edit-container {
   position: fixed;
   width: 100%;
@@ -1516,6 +1541,7 @@ video {
   justify-content: center;
   align-items: center;
   transition: opacity 0.4s ease-in-out;
+  overflow: hidden;
 }
 
 .edit-container.active {
@@ -1559,6 +1585,41 @@ video {
   height: 20px;
 }
 
+.dberror {
+  background-color: #00000039;
+  position: fixed;
+  width: 100%;
+  height: 100%;
+  top: 62px;
+  z-index: 1000;
+  overflow: hidden;
+  display: flex;
+  justify-content: center;
+  align-items: center;
+}
+
+.erorr-container {
+  width: 633px;
+  height: 362px;
+  border-radius: 20px;
+  background: #fff;
+  display: flex;
+  justify-content: center;
+  align-items: center;
+  flex-direction: column;
+}
+
+.erorr-container img {
+  width: 110px;
+}
+
+.erorr-container h1 {
+  font-size: 30px;
+  font-weight: 600;
+  margin-top: 5px;
+  margin-bottom: 0;
+}
+
 @media (max-width: 1950px) {
   /* при разрешении монитора до 1950 пикселей */