That you should NOT use two urls, you'll have issues with the forum itself, not just the theme.
I'd suggest adding a redirect rule to your htaccess file.

See this: https://www.simplemachines.org/community/index.php?topic=584807.msg4143593#msg4143593

Diego, what can be a reason for such issue:
Forum without WWW subdomain, I see Repulse boards read/unread icons fine:



But with WWW I see this instead:

Thanks, it worked. 

I just set  Logo URL to {forumurl}/Themes/default/images/logo.png and kaboom.

And before that I set to:

Quote from: flash_os on December 03, 2023, 04:42:14 PMRight after I set Logo URL on Repulse Theme I started to get theme_template_error on every page of my SMF 2.1.4

Can't reproduce this issue.

Quote from: flash_os on December 03, 2023, 04:42:14 PMHow to swap back to default SMF Theme without rebuild it?

{forumurl}/index.php?theme=1

 Right after I set Logo URL on Repulse Theme I started to get theme_template_error on every page of my SMF 2.1.4
 

How to swap back to default SMF Theme without rebuild it?
 

same as above 

Quote from: Boban ツ on October 29, 2023, 09:30:05 AMI am working on a new theme right now, after that maybe Darkec will be updated.

I'm waiting for this theme to be updated to SMF 2.1

View at the store

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Theme video: https://vimeo.com/889210828

• Bootstrap 5
• Full Responsive Theme
• FontAwesome 6
• New icons pack
• Set your own logo url
• New designs for the news
• Enable/disable carousel and control carousel speed
• Show carousel only on home page
• Enable/disable avatar on board
• Enable/disable avatar on recent posts stats
• Enable/disable avatar on topic list
• Quick login
• Profile cover imge (Forum Profile > Look and Layout image link)
• Separate sticky & normal topics

New:

• Board Template
• Display Template
• Members List
• Profile Template
• Login

Alerts:

• New Personal Message
• New Alerts
• The forum is in Maintenance Mode
• The forum have a moderation reports
• The forum have approve members for waiting

Footer:

• Add Quick Links 2 rows
• Social networks icons

Install:

• How to install theme: https://vimeo.com/182908486

Purchase this product
Support board
View demo

I am working on a new theme right now, after that maybe Darkec will be updated.

Good afternoon, when will the Darkec theme be updated soon?
I would like to buy