diff --git a/warp.sh b/warp.sh
index 109266a..2c384f1 100644
--- a/warp.sh
+++ b/warp.sh
@@ -80,7 +80,15 @@ CONF
 save_config_val() {
     local key="$1" value="$2"
     if grep -q "^${key}=" "$WARP_CONF" 2>/dev/null; then
-        sed -i "s|^${key}=.*|${key}=\"${value}\"|" "$WARP_CONF"
+        local tmpf; tmpf=$(mktemp)
+        while IFS= read -r line; do
+            if [[ "$line" == "${key}="* ]]; then
+                echo "${key}=\"${value}\""
+            else
+                echo "$line"
+            fi
+        done < "$WARP_CONF" > "$tmpf"
+        mv "$tmpf" "$WARP_CONF"
     else
         echo "${key}=\"${value}\"" >> "$WARP_CONF"
     fi
@@ -1622,7 +1630,7 @@ bot_poll_cycle() {
     [ -z "$response" ] && sleep 2 && return
 
     local header
-    header=$(echo "$response" | jq -r '[.ok // "false", (.result | length)] | @tsv' 2>/dev/null)
+    header=$(echo "$response" | jq -r '[.ok // "false", (.result | length)] | @tsv' 2>/dev/null) || true
     local ok cnt
     IFS=$'\t' read -r ok cnt <<< "$header"
     [ "$ok" != "true" ] && sleep 5 && return
@@ -1639,7 +1647,7 @@ bot_poll_cycle() {
             (.message.chat.id // ""),
             (.message.text // "")
         ] | @tsv
-    ' 2>/dev/null)
+    ' 2>/dev/null) || true
 
     while IFS=$'\t' read -r uid cbd cbi cci cmi mci mtx; do
         [ -z "$uid" ] && continue