Powershell command for SharePoint Online site+Exception calling "ExecuteQuery" with "0" argument(s): "The 'br' start tag on line 1 position 155 does not match the end tag of 'body'. Line 1, position 199."

[DBG]: PS C:\Users\Biraj>>  $context.ExecuteQuery()
Exception calling "ExecuteQuery" with "0" argument(s): "The 'br' start tag on line 1 position 155 does not match the end tag of 'body'. Line 1, position 199."
At line:1 char:2
+  $context.ExecuteQuery()
+  ~~~~~~~~~~~~~~~~~~~~~~~
    + CategoryInfo          : NotSpecified: (:) [], MethodInvocationException
    + FullyQualifiedErrorId : XmlException