Description

Sitecore might become unresponsive and cause the SXA website to go down. Symptoms might include SC Hotfix 468030-1 SXA 9.3.0.2589.zip installed, high CPU usage, slow response time and the following error in the logs:

Exception: System.IndexOutOfRangeException
Message: Index was outside the bounds of the array.
Source: mscorlib
at System.Collections.Generic.Dictionary`2.Insert(TKey key, TValue value, Boolean add)
at Sitecore.XA.Foundation.Multisite.SiteInfoResolver.IsMatchingPath(Item item, SiteInfo siteInfo)

Solution

To resolve the issue, consider one of the following options:

• Upgrade Sitecore XP instance to Sitecore XP 10.2.0 and SXA 10.2.0 or later.
• For Sitecore XP 9.2, download and install the corresponding cumulative hotfix available in KB1001753.
• For Sitecore XP 9.3, download and install the corresponding cumulative hotfix available in KB1001754.
• For Sitecore XP 10.0, download and install the corresponding cumulative hotfix available in KB1001755.
• For Sitecore XP 10.1, download and install the corresponding cumulative hotfix available in KB1001756.