Barcelona president Josep Maria Bartomeu has again questioned the myriad off-field problems currently facing the club, saying: "It seems to be always those from Barca."
Barca have seen some of their leading players -- notably Lionel Messi and Javier Mascherano -- investigated over tax issues, while both Neymar and the club could face punishment over the Brazilian's 2013 move from Santos.
Barca are also still serving a transfer ban imposed by FIFA last year and last month released several youth players to avoid risking further sanctions from world football's governing body.
Members of Barca's board have also recently voiced their anger at a fine imposed by UEFA for flying Catalan independence-linked "estelada" flags at games.
At Barca's AGM last weekend, club officials talked about "fundamental human rights" being breached, and graffiti artists were commissioned to produce an original 15x4 metre banner in favour of freedom of expression.
Asked on Catalan station 8TV if he thought there was a conspiracy to harm Barca coming from outside, Bartomeu said: "I would not say there has been [dark forces at work], but there have been many coincidences, as there have been 'esteladas' at the Camp Nou for a long time.
"We are seeing this for a long time now in many situations -- a lot of hurrying, many coincidences ... UEFA, Neymar, FIFA, tax issues ... Of course they need to investigate the players, but it seems to be always those from Barca."
Bona nit! Aquí teniu l'entrevista amb @jmbartomeu #bartomeu8aldia https://t.co/BQPkrcNyaK
- 8aldia (@8aldia) October 26, 2015
Barca are to pay the latest €40,000 fine imposed by UEFA, which says the "estelada" flags are not allowed inside stadiums as they are political symbols.
Bartomeu said the board had persuaded the authorities not to close the Camp Nou due to the issue, and that if more punishments came in future they would fight it all the way, through the Court of Arbitration for Sport (CAS) to the Swiss legal system, if required.
"We are not going against anyone, this is not a war against UEFA, but we will defend the rights of our socis," he said. "UEFA wanted to close the stadium and we managed for that not to happen. If there are more punishments we will go to CAS, and if they do not rule in our favour, to the Swiss courts. I would like this to end with a change in UEFA's rules."
Asked about unsubstantiated claims made by a Barcelona-based lawyer that an unnamed assistant referee had been asked to favour Real Madrid in the upcoming Clasico, Bartomeu said he wanted the case to be fully investigated.
"I ask for the linesman to be investigated all the way," he said. "If it is true, it is very serious. Referees can make mistakes, but if there are pressures as has been said, it seems very serious to me."
Bartomeu also said that concerns raised by Neymar Sr. about his son extending his Barcelona contract while tax issues remained hanging over the pair would not stop a new deal being agreed during the 2015-16 campaign.
"That is not on Barca's side," he said. "I believe he was talking about consulting with the tax authorities, as he now pays taxes in Spain.
"About Neymar's new contract, this is the season for it to happen. But of course we will try not to retransmit the negotiations and to work discreetly until we can announce the extension of his contract."
Media reports that Barca's plans to renew their sponsorship deal with the Qatar government were in danger would ultimately prove "embarrassing" to the publications involved, Bartomeu said.
"The talks are not over, nor broken, it is just that the situation is not comfortable at the moment, and we cannot give details until it is completed," he said. "My message is that we are relaxed, that this board has been resolving many problems since 2010 and that some people will be embarrassed in time about the headlines they have written.
"The trip to Doha was another phase in the negotiation, it does not bother me if I come back empty handed, what matters is Barca's interests."
Bartomeu also played down suggestions of hypocrisy as Barca publicly defend human rights and freedom of speech while dealing so closely with Qatar, which has faced criticism over its record on such matters.
"We really appreciate how Qatar Airways have helped us to grow, and them with us," he said. "About debates and policies, I am not the one to talk. I can just say that no sponsor, nor anyone else, has mentioned having Qatar on the jersey as a problem -- not even UNICEF, who share the shirt sponsorship."