Popular communications application Skype went down across the world on Monday. Numerous users are currently complaining on social media that they are not able to sign in.

“We're a bit overloaded right now...Please try again later, or download Skype to use it anytime,” Skype wrote on its website.

We are aware of an issue affecting Skype status at the moment, and are working on a quick fix: http://t.co/ymSzmrgEX0pic.twitter.com/8LoqqL0hh7 — Skype Support (@SkypeSupport) September 21, 2015

We are working to fix an issue which is preventing some users from logging in & using Skype. We apologize for any inconvenience. — Skype (@Skype) September 21, 2015

“Affected users will not be able to change their status, their contacts will all show as offline and they will be unable to start Skype calls to them.” However, they added that instant messages “are still being delivered as usual. The status issue also doesn't affect Skype for Web, which can be used to make calls and send instant messages.”

READ MORE: ‘I see dead people’: How Skype outage ‘ruined’ people’s lives on Monday

Amazon outage, skype outage. Yep, running your whole business in the cloud is soo much better — Robert J.C. Ivens (@ROCLASI) September 21, 2015

@Sign2Pay Skype is down in US/australia and New Zealand too — Ian Dunn (@platinumshore) September 21, 2015

Skype is down. Come on, I need you right now. — Christopher Bolton (@chrisbolton) September 21, 2015

is anybody else having issues logging into skype? — Megan / OpTic Jewel (@Jewelxo) September 21, 2015

Skype is down in Europe. pic.twitter.com/75JLN7wDJo — Alexandre Dreyfus (@alex_dreyfus) September 21, 2015

skype is FINALLY dead — bean 1 (@heartprinced) September 21, 2015

READ MORE: Facebook, Instagram go down globally, internet freaks out

Skype was created back in 2003 and has since gathered more than 660 million users worldwide (as of 2010).